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Use the A-Z list to browse more than 6,000 health-related topics in our library. Clicking on a term opens the definition and, in most cases, links to more information.
Topic Index
- + APA
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- APA
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"APA" is more commonly referred to as "Antiphospholipid Syndrome" in the medical community.
Antiphospholipid Syndrome
Also Known As: "Hughes Syndrome, Lupus-Like Syndrome, Anticardiolypin Antibody Syndrome, Anti Phospholipid Syndrome, APLS"
A condition in which certain antibodies normally associated with lupus are found in the blood with or without the patient having lupus. It can cause blood clots and a low platelet count. In women, it can cause miscarriages.
More Information on Antiphospholipid Syndrome: Anemia & Blood Disorders
- + Apathy
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- Apathy
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A state of indifference, lacking emotion, motivation and enthusiasm.
More Information on Apathy: Emotional Signs & Symptoms
- + Apex
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- Apex
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The tip of the root of a tooth, through which nerves and blood vessels pass.
More Information on Apex: Oral Health Basics
- + Apexcardiography
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- Apexcardiography
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Also Known As: "ACG"
A formerly common imaging test that is rarely used today due to the availability of superior tests. It shows the pumping action of the heart made by the "apex beat" (the movement of the left ventricle against the chest).
More Information on Apexcardiography: Heart Imaging & Rhythm Tests
- + Apgar
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- Apgar
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Also Known As: "Apgar Test, Apgar Exam"
A score given to an infant immediately after birth based on heart rate, respiratory effort, color, muscle tone and reflex.
More Information on Apgar: Pregnancy Basics
- + Apgar Exam
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- Apgar Exam
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Also Known As: "Apgar Test"
A score given to an infant immediately after birth based on heart rate, respiratory effort, color, muscle tone and reflex.
More Information on Apgar Exam: Pregnancy Basics
- + Apgar Test
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- Apgar Test
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Also Known As: "Apgar Exam"
A score given to an infant immediately after birth based on heart rate, respiratory effort, color, muscle tone and reflex.
More Information on Apgar Test: Pregnancy Basics
- + Aphasia
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- Aphasia
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A condition in which a person loses the ability to say or comprehend words. The patient may have trouble reading, writing, speaking and understanding the speech of others. The condition is usually the result of brain damage.
More Information on Aphasia: Neuro Signs & Symptoms
- + APHIS
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- APHIS
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"APHIS" is more commonly referred to as "Animal & Plant Health Inspection Service" in the medical community.
Animal & Plant Health Inspection Service
An agency of the U.S. Department of Agriculture (USDA) that conducts inspections of animals and plants to prevent emergence of pests and disease, or to control them once they are discovered.
- + Aphthous Stomatitis
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- Aphthous Stomatitis
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"Aphthous Stomatitis" is more commonly referred to as "Canker Sores" in the medical community.
Canker Sores
Also Known As: "Recurrent Mouth Ulcers, Aphthous Ulcers"
Painful, round ulcers on the linings of the cheeks and lips, the tongue, or the base of the gums. This condition is often inherited. The cause is unknown but may involve an immune abnormality.
More Information on Canker Sores: Mouth & Tongue Disorders
- + Aphthous Ulcers
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- Aphthous Ulcers
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"Aphthous Ulcers" is more commonly referred to as "Canker Sores" in the medical community.
Canker Sores
Also Known As: "Recurrent Mouth Ulcers, Aphthous Stomatitis"
Painful, round ulcers on the linings of the cheeks and lips, the tongue, or the base of the gums. This condition is often inherited. The cause is unknown but may involve an immune abnormality.
More Information on Canker Sores: Mouth & Tongue Disorders
- + Apicoectomy
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- Apicoectomy
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The surgical removal of the tip of a tooth root. Occasionally necessary after a root canal treatment if the apex becomes or remains infected.
More Information on Apicoectomy: Dental Restorations
- + APL
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- APL
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"APL" is more commonly referred to as "Acute Promyelocytic Leukemia" in the medical community.
Acute Promyelocytic Leukemia
Also Known As: "Promyelocytic Leukemia"
A type of bone marrow cancer in which there is a deficiency of mature blood cells in the myeloid line of cells and an excess of immature cells called promyelocytes. It is a type of acute myeloid leukemia.
More Information on Acute Promyelocytic Leukemia: Leukemia & Bone Cancer
- + APLS
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- APLS
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"APLS" is more commonly referred to as "Antiphospholipid Syndrome" in the medical community.
Antiphospholipid Syndrome
Also Known As: "Hughes Syndrome, Lupus-Like Syndrome, Anticardiolypin Antibody Syndrome, Anti Phospholipid Syndrome, APA"
A condition in which certain antibodies normally associated with lupus are found in the blood with or without the patient having lupus. It can cause blood clots and a low platelet count. In women, it can cause miscarriages.
More Information on Antiphospholipid Syndrome: Anemia & Blood Disorders
- + Apnea
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- Apnea
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"Apnea" is more commonly referred to as "Sleep Apnea" in the medical community.
Sleep Apnea
Also Known As: "Sleep Disordered Breathing, Obstructive Sleep Apnea-Hypopnea, SDB"
A disorder in which a person's breathing stops and starts many times during sleep. The interruptions last from 10 seconds to two minutes. It is linked to some degree with coronary artery disease, hypertension, heart failure and stroke.
More Information on Sleep Apnea: Sleep
- + Apnea of Prematurity
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- Apnea of Prematurity
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Short periods where premature infants stop breathing due to immature nervous system development.
More Information on Apnea of Prematurity: Newborn Care
- + Apo
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- Apo
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Also Known As: "Apo E, Apo B100, Apo A, Apo A1, Apo B, Apo A2"
Nonfat parts of lipoproteins (proteins that carry cholesterol and triglycerides in the blood). They are grouped by their functions into B100, A1, A2, B and E (some also have subgroups), which may also refer to the genes that control those functions.
- + Apo A
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- Apo A
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Also Known As: "Apo A1, Apo B, Apo A2, Apo, Apo E, Apo B100"
Nonfat parts of lipoproteins (proteins that carry cholesterol and triglycerides in the blood). They are grouped by their functions into B100, A1, A2, B and E (some also have subgroups), which may also refer to the genes that control those functions.
- + Apo A1
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- Apo A1
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Also Known As: "Apo B, Apo A2, Apo, Apo E, Apo B100, Apo A"
Nonfat parts of lipoproteins (proteins that carry cholesterol and triglycerides in the blood). They are grouped by their functions into B100, A1, A2, B and E (some also have subgroups), which may also refer to the genes that control those functions.
- + Apo A2
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- Apo A2
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Also Known As: "Apo, Apo E, Apo B100, Apo A, Apo A1, Apo B"
Nonfat parts of lipoproteins (proteins that carry cholesterol and triglycerides in the blood). They are grouped by their functions into B100, A1, A2, B and E (some also have subgroups), which may also refer to the genes that control those functions.
- + Apo B
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- Apo B
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Also Known As: "Apo A2, Apo, Apo E, Apo B100, Apo A, Apo A1"
Nonfat parts of lipoproteins (proteins that carry cholesterol and triglycerides in the blood). They are grouped by their functions into B100, A1, A2, B and E (some also have subgroups), which may also refer to the genes that control those functions.
- + Apo B100
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- Apo B100
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Also Known As: "Apo A, Apo A1, Apo B, Apo A2, Apo, Apo E"
Nonfat parts of lipoproteins (proteins that carry cholesterol and triglycerides in the blood). They are grouped by their functions into B100, A1, A2, B and E (some also have subgroups), which may also refer to the genes that control those functions.
- + Apo C II Deficiency
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- Apo C II Deficiency
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"Apo C II Deficiency" is more commonly referred to as "Familiar Lipoprotein Lipase Deficiency" in the medical community.
Familiar Lipoprotein Lipase Deficiency
A genetic condition in which people lack one of the enzymes necessary to properly break down chylomicrons. As a result, the person may be diagnosed with a high chylomicron level (hyperchylomicronemia).
More Information on Familiar Lipoprotein Lipase Deficiency: Cholesterol
- + Apo E
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- Apo E
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Also Known As: "Apo B100, Apo A, Apo A1, Apo B, Apo A2, Apo"
Nonfat parts of lipoproteins (proteins that carry cholesterol and triglycerides in the blood). They are grouped by their functions into B100, A1, A2, B and E (some also have subgroups), which may also refer to the genes that control those functions.
- + Apocrine Gland
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- Apocrine Gland
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A type of sweat gland located in the armpits, breast, groin and other areas of the body.
More Information on Apocrine Gland: Perspiration & Chafing
- + Apolipoproteins
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- Apolipoproteins
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Also Known As: "Apo B, Apo A2, Apo, Apo E, Apo B100, Apo A, Apo A1"
Nonfat parts of lipoproteins (proteins that carry cholesterol and triglycerides in the blood). They are grouped by their functions into B100, A1, A2, B and E (some also have subgroups), which may also refer to the genes that control those functions.
- + Apolizumab
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- Apolizumab
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"Apolizumab" is more commonly referred to as "Monoclonal Antibodies" in the medical community.
Monoclonal Antibodies
Also Known As: "Cetuximab, Dacliximab, Trastuzumab, Bevacizumab, Rituximab, Alemtuzumab"
Any of a type of antibody made in the laboratory and designed to target specific substances called antigens. They are used to treat several conditions, including some types of cancer.
More Information on Monoclonal Antibodies: Cancer Drug & Medication
- + Apoptosis
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- Apoptosis
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A type of cell death in which a series of molecular changes with the cells lead to its death. Anything preventing these changes is called antiapoptotic.
More Information on Apoptosis: Cancer Basics
- + Appearance Reality Distinction
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- Appearance Reality Distinction
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The distinction between what things actually are and what they seem to be. The formation of this distinction is an important aspect in child development.
More Information on Appearance Reality Distinction: Growth & Development
- + Appendectomy
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- Appendectomy
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Also Known As: "Laparoscopic Appendectomy, Appendectomy Surgery"
Surgical removal of an inflamed or infected appendix. It is one of the most common causes of emergency abdominal surgery in the United States.
More Information on Appendectomy: Abdominal Pain
- + Appendectomy Surgery
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- Appendectomy Surgery
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Also Known As: "Laparoscopic Appendectomy"
Surgical removal of an inflamed or infected appendix. It is one of the most common causes of emergency abdominal surgery in the United States.
More Information on Appendectomy Surgery: Abdominal Pain
- + Appendicitis
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- Appendicitis
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Also Known As: "Acute Appendicitis, Chronic Appendicitis"
Inflammation of the appendix, a small finger-shaped tube that branches off the first part of the large intestine. It causes pain in the lower-right abdomen and is among the most common causes of emergency abdominal surgery.
More Information on Appendicitis: Abdominal Pain
- + Appendix
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- Appendix
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A small finger-shaped tube that branches off the first part of the large intestine. Its function is not known.
More Information on Appendix: Digestive Health Basics
- + Appetite
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- Appetite
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A desire for food or drink that naturally recurs.
More Information on Appetite: Nutrition Basics
- + Appetite Loss
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- Appetite Loss
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"Appetite Loss" is more commonly referred to as "Anorexia" in the medical community.
Anorexia
Also Known As: "Loss of Appetite, Poor Appetite"
Any abnormal loss of appetite. It may result in significant weight loss. Causes include cancer, AIDS, mental disorder or other diseases. It can also be a side effect of cancer treatments. It is not the same as anorexia nervosa (an eating disorder).
- + Appetite Suppressant Drugs
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- Appetite Suppressant Drugs
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"Appetite Suppressant Drugs" is more commonly referred to as "Diet Pills" in the medical community.
Diet Pills
Substances to aid in weight loss that may be available over-the-counter or by prescription. They are not usually recommended for weight management in people with diabetes as they often do not work or have potentially dangerous side effects.
More Information on Diet Pills: Weight & Obesity Basics
- + Apple Shaped
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- Apple Shaped
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"Apple Shaped" is more commonly referred to as "Central Obesity" in the medical community.
Central Obesity
An excess of body fat carried around the waste -- rather than also around the limbs. It is a risk factor for a number of conditions, including type 2 diabetes and heart disease.
More Information on Central Obesity: Weight & Obesity Basics
- + Appliance
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- Appliance
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Also Known As: "Orthodontic Appliance, Fixed Appliance, Prosthesis, Dental Prosthesis, Removable Appliance, Dental Appliance, Orthodontic Prosthesis"
A device worn in the mouth to replace or repair the teeth or jaw. It may be fixed or removable. Types include inlays, onlays, crowns, bridges and dentures.
More Information on Appliance: Dental Braces & Alignment
- + Apraxia
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- Apraxia
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The inability to complete voluntary movements even though there is no impairment to the senses or muscle function. There are many forms, including akinetic, amnesic, buccofacial, constructional, developmental, dressing, limb, motor and sensory.
More Information on Apraxia: Neuro Signs & Symptoms
- + Apraxic Gait
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- Apraxic Gait
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The inability to perform normal walking movements even though there no evidence of paralysis or motor or sensory problems.
More Information on Apraxic Gait: Arm & Leg Pain
- + APSAC
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- APSAC
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"APSAC" is more commonly referred to as "Clot Busting Drugs" in the medical community.
Clot Busting Drugs
Also Known As: "Tissue Plasminogen Activator, rt-PA, Thrombolytic Enzymes, Thrombolytic Drugs, Thrombolytic Agents, t-PA"
The only medications currently available that can dissolve or break up a blood clot.
More Information on Clot Busting Drugs: Blood Clot
- + APTT
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- APTT
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"APTT" is more commonly referred to as "Prothrombin Time" in the medical community.
Prothrombin Time
Also Known As: "Partial Thromboplastin Time, PCT, Partial Prothrombin Time, Pro-Time, PPT, PT Time"
One of several blood tests that measure the time it takes for blood to clot. Results are adjusted with the international normalization ratio (INR), which physicians use to monitor patients on anticoagulant therapy.
- + AQS
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- AQS
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"AQS" is more commonly referred to as "Attachment Q Set" in the medical community.
Attachment Q Set
A tool for assessing attachment and security between a parent and child. Descriptors of attachment-related reactions, such as greeting and smiling, are into categories according to the degree that the reactions are apparent in the child.
More Information on Attachment Q Set: Emotional Health Basics
- + Aquarium Allergy
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- Aquarium Allergy
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Allergic response to the dried pet fish food that is often made up of the proteins of brine shrimp and other seafood species. The dried food becomes easily aerosolized and can be inhaled.
More Information on Aquarium Allergy: Food Allergy & Intolerance
- + Arachnoid Brain Cysts
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- Arachnoid Brain Cysts
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Also Known As: "Intracranial Cysts, Intracranial Arachnoid Cysts"
Fluid-filled sacs that may develop on the arachnoid membrane that covers the brain and spinal cord or between the brain surface and the cranial base. They usually begin in infancy and are more common in males.
More Information on Arachnoid Brain Cysts: Pediatric Brain & Nerve
- + Arachnoid Cysts
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- Arachnoid Cysts
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Also Known As: "Intracranial Cysts, Arachnoid Brain Cysts, Intracranial Arachnoid Cysts"
Fluid-filled sacs that may develop on the arachnoid membrane that covers the brain and spinal cord or between the brain surface and the cranial base. They usually begin in infancy and are more common in males.
More Information on Arachnoid Cysts: Pediatric Brain & Nerve
- + Arachnoiditis
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- Arachnoiditis
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Inflammation of the arachnoid, one of the membranes that surround and protect the nerves of the spinal cord. In some cases, it can cause spinal nerves to stick together, causing a stinging pain in the lower back or legs.
More Information on Arachnoiditis: Back, Neck & Shoulder Pain
- + ARBD
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- ARBD
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"ARBD" is more commonly referred to as "Alcohol Related Birth Defects" in the medical community.
Alcohol Related Birth Defects
Birth defects due to fetal alcohol exposure. Problems may include abnormalities of the heart, kidneys, bones, hearing loss and/or vision impairment.
More Information on Alcohol Related Birth Defects: Pediatric Brain & Nerve
- + Arborviral Encephalitis
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- Arborviral Encephalitis
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Also Known As: "Mosquito Transmitted Encephalitis, Arboviral Encephalitides, Mosquito Borne Encephalitis"
Inflammation of the brain caused by viruses carried by arthropods, such as mosquitoes and ticks (arboviruses).
More Information on Arborviral Encephalitis: Brain Related Infections
- + Arboviral Encephalitides
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- Arboviral Encephalitides
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Also Known As: "Mosquito Transmitted Encephalitis, Mosquito Borne Encephalitis"
Inflammation of the brain caused by viruses carried by arthropods, such as mosquitoes and ticks (arboviruses).
More Information on Arboviral Encephalitides: Brain Related Infections
- + Arbovirus
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- Arbovirus
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Also Known As: "Arthropod Borne Virus"
Any virus that is primarily transmitted by arthropods, which include mosquitos, ticks, spiders, insects, centipedes, millipedes, scorpions, bees and others. The most common disease carriers are mosquitos and ticks.
More Information on Arbovirus: Infectious Disease Basics
- + ARBs
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- ARBs
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"ARBs" is more commonly referred to as "Angiotensin II Receptor Blockers" in the medical community.
Angiotensin II Receptor Blockers
Also Known As: "A II Blockers, Angiotensin II Antagonists"
Medications that widen blood vessels by preventing a substance called angiotensin II from entering angiotensin II receptors. Angiotensin II is one of several substances in the body that cause blood vessels to tighten and regulates blood pressure.
More Information on Angiotensin II Receptor Blockers: Blood Pressure
- + ARBs & Diabetes
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- ARBs & Diabetes
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Medications that widen blood vessels and lower blood pressure. Research is ongoing as to their potential impact on the development or progression of kidney disease in people with diabetes.
More Information on ARBs & Diabetes: Diabetes & Endocrine Drugs
- + Arch
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- Arch
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Also Known As: "Dental Arch"
The curve of the jaw and teeth.
More Information on Arch: Oral Health Basics
- + Arch Aorta
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- Arch Aorta
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"Arch Aorta" is more commonly referred to as "Coarctation of the Aorta" in the medical community.
Coarctation of the Aorta
Also Known As: "Aortic Arch Defect, Aortic Coarctation"
A condition in which the aorta (the main artery carrying oxygen-rich blood from the heart to the rest of the body) is pinched, constricted or narrowed at some point along its length.
More Information on Coarctation of the Aorta: Pediatric Heart
- + Archangel Root
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- Archangel Root
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"Archangel Root" is more commonly referred to as "Angelica Root" in the medical community.
Angelica Root
Also Known As: "Dong Quai, Angelicae Pubescentis, Holy Ghost Root, Bai Zhi, Angelicae Dahuricae, Dang Gui, Archangelica Root"
A root from any of a group of Angelica plants or herbs. It may be used in aromatherapy and perfumes. However, some cultures use it as an herbal remedy for loss of appetite, gas or other gastrointestinal problems.
More Information on Angelica Root: Herbs & Supplements
- + Archangelica Root
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- Archangelica Root
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"Archangelica Root" is more commonly referred to as "Angelica Root" in the medical community.
Angelica Root
Also Known As: "Dong Quai, Angelicae Pubescentis, Holy Ghost Root, Bai Zhi, Angelicae Dahuricae, Archangel Root, Dang Gui"
A root from any of a group of Angelica plants or herbs. It may be used in aromatherapy and perfumes. However, some cultures use it as an herbal remedy for loss of appetite, gas or other gastrointestinal problems.
More Information on Angelica Root: Herbs & Supplements
- + Arctic Investigations Program
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- Arctic Investigations Program
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A Center for Disease Control and Prevention (CDC) effort based in Alaska to prevent infectious diseases in peoples of the Arctic and Subarctic. Special emphasis is on diseases of concern among Alaska Natives and American Indians.
- + ARDS
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- ARDS
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"ARDS" is more commonly referred to as "Postpump Syndrome" in the medical community.
Postpump Syndrome
Also Known As: "Systemic Inflammatory Response Syndrome, Adult Respiratory Distress Syndrome, Acute Lung Injury, Pump Syndrome"
A potentially fatal condition that occurs in only 1 to 2 percent of people who have had bypass surgery. Researchers continue to investigate its causes and treatments.
More Information on Postpump Syndrome: Bypass Surgery
- + Arenaviral Hemorrhagic Fever
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- Arenaviral Hemorrhagic Fever
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Infection in humans linked to the Arenaviridae, a family of viruses whose members are associated with rodent-transmitted disease. They are relatively common in parts of the world and can cause severe illnesses.
More Information on Arenaviral Hemorrhagic Fever: Infectious Disease Basics
- + Arenavirus Infection
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- Arenavirus Infection
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Also Known As: "Arenaviral Hemorrhagic Fever"
Infection in humans linked to the Arenaviridae, a family of viruses whose members are associated with rodent-transmitted disease. They are relatively common in parts of the world and can cause severe illnesses.
More Information on Arenavirus Infection: Infectious Disease Basics
- + Areolar Glands
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- Areolar Glands
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"Areolar Glands" is more commonly referred to as "Montgomery Glands" in the medical community.
Montgomery Glands
Glands located around the areola of the nipple that enlarge during pregnancy and breastfeeding and supply oils to lubricate the nipple.
More Information on Montgomery Glands: Breast Health
- + Arginine
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- Arginine
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"Arginine" is more commonly referred to as "Antidiuretic Hormone" in the medical community.
Antidiuretic Hormone
Also Known As: "Syndrome of Inappropriate ADH Secretion, Hypervolemia, ADH, SIADH, Vasopressin"
A hormone released from the pituitary gland that signals the kidneys to produce less urine, increasing water retention.
- + Arhinencephaly
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- Arhinencephaly
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"Arhinencephaly" is more commonly referred to as "Holoprosencephaly" in the medical community.
Holoprosencephaly
Also Known As: "Lobar Holoprosencephaly, Alobar Holoprosencephaly, Semilobar Holoprosencephaly"
A condition in which the forebrain of the embryo fails to develop, which usually occurs in the fifth or sixth weeks of pregnancy. Types include alobar (most severe), semilobar (intermediate) and lobar (least severe).
More Information on Holoprosencephaly: Pediatric Brain & Nerve
- + Ariboflavinosis
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- Ariboflavinosis
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A vitamin B2 (riboflavin) deficiency which results in mouth lesions, seborrhea (oily skin) and vascularization of the cornea. Mainly seen with malnutrition and/or alcoholism.
More Information on Ariboflavinosis: Vitamins
- + Aripiprazole
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- Aripiprazole
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"Aripiprazole" is more commonly referred to as "Clozapine" in the medical community.
Clozapine
Also Known As: "Ziprasidone, Olanzapine, Risperidone, Quetiapine, Sertindole"
A type of medication belonging to the drug class called atypical antipsychotics. It may be used in the treatment of schizophrenia and acute manic and mixed episodes associated with bipolar disorder
More Information on Clozapine: Psychiatric Medications
- + ARIs
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- ARIs
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"ARIs" is more commonly referred to as "Aldose Reductase Inhibitors" in the medical community.
Aldose Reductase Inhibitors
Medications that slow or block the actions of the aldose reductase enzyme that changes blood sugar (glucose) into sugar alcohol (sorbitol). Sorbitol trapped in body cells can lead to eye (retinopathy) or nerve problems (neuropathy).
More Information on Aldose Reductase Inhibitors: Diabetes & Endocrine Drugs
- + Arm Cuff
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- Arm Cuff
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"Arm Cuff" is more commonly referred to as "Sphygmomanometer" in the medical community.
Sphygmomanometer
Also Known As: "Aneroid Sphygmomanometer, Blood Pressure Cuff, Mercury Sphygmomanometer"
The arm cuff device used to measure blood pressure. Some types have a mercury display, while others provide electronic readouts.
More Information on Sphygmomanometer: Blood Pressure
- + ARMS
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- ARMS
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"ARMS" is more commonly referred to as "Adverse Reaction Monitoring System" in the medical community.
Adverse Reaction Monitoring System
Unit of the FDA charged with monitoring the use of individual food additives to determine whether they represent a threat to the general public. They also field relevant complaints from consumers.
More Information on Adverse Reaction Monitoring System: Food Allergy & Intolerance
- + ARND
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- ARND
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"ARND" is more commonly referred to as "Alcohol Related Neurodevelopmental Disorder" in the medical community.
Alcohol Related Neurodevelopmental Disorder
Central nervous system abnormalities that occur as a result of fetal alcohol exposure. Children affected commonly display cognitive and behavioral problems, but no growth deficiency or facial abnormalities.
More Information on Alcohol Related Neurodevelopmental Disorder: Pediatric Brain & Nerve
- + Arnold Chiari Malformation
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- Arnold Chiari Malformation
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"Arnold Chiari Malformation" is more commonly referred to as "Chiari Malformation" in the medical community.
Chiari Malformation
A condition in which the cerebellum portion of the brain protrudes into the spinal canal. It causes skull enlargement (hydrocephalus) and often is accompanied by disorders such as spina bifida cystica and meningomyelocele.
More Information on Chiari Malformation: Pediatric Brain & Nerve
- + Aromatase Inhibitors
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- Aromatase Inhibitors
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Medications that interfere with the aromatase enzyme and therefore prevents the production of estradiol, a female hormone. They may be used in women with hormone-dependent breast cancer.
More Information on Aromatase Inhibitors: Cancer Drug & Medication
- + Arrhenoblastoma
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- Arrhenoblastoma
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"Arrhenoblastoma" is more commonly referred to as "Androblastoma" in the medical community.
Androblastoma
Also Known As: "Sertoli Leydig Cell Tumor, Gonadal Stromal Tumor, Sertoli Leydig Ovarian Tumor, Sex Cord Tumor, Sertoli Leydig Cell Tumor of the Ovary, Stromal Tumor"
A rare type of ovarian cancer in which the tumor secretes the male hormone testosterone. This leads to the appearance of male characteristics in females.
More Information on Androblastoma: ObGyn Cancer
- + Arrhythmia
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- Arrhythmia
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Also Known As: "Irregular Rhythm, Irregular Heartbeat, Cardiac Arrhythmia, Rhythm Disorder, Rhythm Disturbance, Irregular Heart Rhythm, Dysrhythmia"
An abnormal heartbeat resulting from any change, deviation or malfunction in the heart's electrical system. An arrhythmia may be abnormally fast (tachycardia) or abnormally slow (bradycardia), and some can be fatal (e.g., ventricular fibrillation).
More Information on Arrhythmia: Arrhythmia
- + Arrhythmia Medications
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- Arrhythmia Medications
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"Arrhythmia Medications" is more commonly referred to as "Antiarrhythmics" in the medical community.
Antiarrhythmics
Medications used to treat all types of abnormal heart rhythms (arrhythmias) except an abnormally slow heartbeat. Some act directly on the heart to slow it down, and others act to restore a normal beating pattern.
More Information on Antiarrhythmics: Arrhythmia
- + Arrhythmia Treatments
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- Arrhythmia Treatments
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Nonsurgical procedures, surgeries and medications that are designed to treat arrhythmias -- abnormal heart rhythms caused by abnormal electrical impulses traveling through the heart.
More Information on Arrhythmia Treatments: Arrhythmia
- + Arrhythmogenic Right Ventricular Cardiomyopathy
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- Arrhythmogenic Right Ventricular Cardiomyopathy
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Also Known As: "Right Ventricular Cardiomyopathy, Right Ventricular Dysplasia, Arrhythmogenic Right Ventricular Dysplasia"
A rare heart disease that is a leading cause of sudden cardiac death in athletes. ARVD runs in families and is present from birth, but it may not be detected until a serious cardiac event occurs. About 80 percent of cases are diagnosed after age 40.
More Information on Arrhythmogenic Right Ventricular Cardiomyopathy: Heart Failure
- + Arrhythmogenic Right Ventricular Dysplasia
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- Arrhythmogenic Right Ventricular Dysplasia
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Also Known As: "Right Ventricular Cardiomyopathy, Right Ventricular Dysplasia, Arrhythmogenic Right Ventricular Cardiomyopathy"
A rare heart disease that is a leading cause of sudden cardiac death in athletes. ARVD runs in families and is present from birth, but it may not be detected until a serious cardiac event occurs. About 80 percent of cases are diagnosed after age 40.
More Information on Arrhythmogenic Right Ventricular Dysplasia: Heart Failure
- + ART
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- ART
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Also Known As: "Reproductive Technology"
Fertility treatments in which the eggs as well as the sperm are handled. These generally involve surgically removing eggs, combining them with sperm in a laboratory and returning them to the woman's body or a surrogate mother.
More Information on ART: Fertility Issues
- + Arterial Blood Gases
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- Arterial Blood Gases
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Also Known As: "Blood Gas Analysis, ABG, Blood Gases"
A diagnostic test that measures the levels of certain gases in the blood traveling through the arteries. It is used to evaluate lung function, metabolism and the body's acid-base balance.
More Information on Arterial Blood Gases: Blood Tests
- + Arterial Bypass Grafting
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- Arterial Bypass Grafting
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"Arterial Bypass Grafting" is more commonly referred to as "Bypass Surgery" in the medical community.
Bypass Surgery
Also Known As: "Bypass Grafting, Bypass, Vein Graft, Bypass Graft"
A surgery in which a healthy blood vessel segment is used to detour around a blocked artery. It is most commonly performed to bypass a blocked coronary artery that supplies blood to the heart but may be done in other body locations.
More Information on Bypass Surgery: Bypass Surgery
- + Arterial Calcification
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- Arterial Calcification
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"Arterial Calcification" is more commonly referred to as "Calcification" in the medical community.
Calcification
Also Known As: "Calcium Deposits, Microcalcifications, Coronary Calcification"
A process that makes plaque harder and more brittle. It occurs when calcium deposits in the blood attach to cholesterol deposits
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