Health Encyclopedia: A A-Z 1 2 5 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z A1C test Amebic liver abscess Aarskog syndrome Amelogenesis imperfecta Aase syndrome Amino acids Abdomen - swollen Aminoaciduria Abdominal aortic aneurysm Aminophylline overdose Abdominal aortic aneurysm repair - open Amitriptyline and perphenazine overdose Abdominal bloating Amitriptyline hydrochloride overdose Abdominal CT scan Ammonia blood test Abdominal exploration Ammonia poisoning Abdominal girth Ammonium hydroxide poisoning Abdominal mass Amniocentesis Abdominal MRI scan Amniotic band sequence Abdominal pain Amniotic fluid Abdominal pain - children under age 12 Amylase - blood Abdominal rigidity Amylase - urine Abdominal sounds Amyotrophic lateral sclerosis (ALS) Abdominal tap Anaerobic Abdominal thrusts Anaerobic bacteria Abdominal ultrasound Anal cancer Abdominal wall fat pad biopsy Anal fissure Abdominal wall surgery Analgesic nephropathy Abdominal x-ray Anaphylaxis Abnormal posturing Anaplastic thyroid cancer Abnormal uterine bleeding Anastomosis Abnormally dark or light skin Androgen insensitivity syndrome ABO incompatibility Anemia Abortion - medical Anemia caused by low iron - children Abortion - surgical Anemia caused by low iron - infants and toddlers Abscess Anemia of chronic disease Abscess - abdomen or pelvis Anencephaly Absence of sweating Aneurysm Absence seizure Aneurysm in the brain Absent menstrual periods - primary Angelman syndrome Absent menstrual periods - secondary Angina Absent pulmonary valve Angiodysplasia of the colon Acanthosis nigricans Angioedema ACE blood test Angioplasty and stent placement - carotid artery Acetaminophen and codeine overdose Angioplasty and stent placement - heart Acetaminophen overdose Angioplasty and stent placement - peripheral arteries Acetone poisoning Animal bites Acetylcholine receptor antibody Anisocoria Achalasia Ankle arthroscopy Achilles tendinitis Ankle pain Achilles tendon repair Ankle replacement Achondrogenesis Ankylosing spondylitis Achondroplasia Annular pancreas Acid loading test (pH) Anomalous left coronary artery from the pulmonary artery Acid mucopolysaccharides Anorchia Acid soldering flux poisoning Anorectal abscess Acid-fast stain Anorexia Acidosis Anoscopy ACL reconstruction Anovulation Acne Anterior Acoustic neuroma Anterior cruciate ligament (ACL) injury Acoustic trauma Anterior knee pain Acquired platelet function defect Anterior vaginal wall repair Acrodysostosis Anthrax Acromegaly Anthrax blood test ACTH blood test Anti-DNase B blood test ACTH stimulation test Anti-glomerular basement membrane blood test Actinic keratosis Anti-glomerular basement membrane disease Actinomycosis Anti-insulin antibody test Acute Anti-reflux surgery Acute adrenal crisis Anti-reflux surgery - children Acute arterial occlusion - kidney Anti-rust product poisoning Acute bilateral obstructive uropathy Anti-smooth muscle antibody Acute bronchitis Antibody Acute cerebellar ataxia Antibody titer blood test Acute cholecystitis Anticoagulant rodenticides poisoning Acute coronary syndrome Antidiarrheal drug overdose Acute flaccid myelitis Antidiuretic hormone blood test Acute HIV infection Antifreeze poisoning Acute Ischemic Stroke Antigen Acute kidney failure Antimitochondrial antibody Acute lymphoblastic leukemia (ALL) Antinuclear antibody panel Acute mountain sickness Antiparietal cell antibody test Acute myeloid leukemia (AML) - children Antiphospholipid syndrome - APS Acute myeloid leukemia - adult Antisocial personality disorder Acute nephritic syndrome Antistreptolysin O titer Acute pancreatitis Antithrombin III blood test Acute respiratory distress syndrome Antithyroglobulin antibody test Acute tubular necrosis Antithyroid microsomal antibody Acute unilateral obstructive uropathy Aortic aneurysm repair - endovascular Addison disease Aortic angiography Adenoid removal Aortic arch syndrome Adenomyosis Aortic dissection Adhesion Aortic regurgitation Adjustment disorder Aortic stenosis Adolescent depression Aortic valve surgery - minimally invasive Adolescent development Aortic valve surgery - open Adolescent test or procedure preparation Aortopulmonary window Adrenal gland removal Apert syndrome Adrenal glands Apgar score Adrenergic bronchodilator overdose Aplastic Adrenocortical carcinoma Aplastic anemia Adrenoleukodystrophy Apnea of prematurity Adult cataract Apolipoprotein B100 Adult soft tissue sarcoma Apolipoprotein CII Adult Still disease Apoplexy Advance care directives Appendectomy Aerobic Appendicitis Aerobic bacteria Appetite - decreased Aflatoxin Appetite - increased Aftershave poisoning Appropriate for gestational age (AGA) Agammaglobulinemia Apraxia Age-related hearing loss Arachnodactyly Age-related macular degeneration Arachnoid cyst Aging changes in body shape Arm CT scan Aging changes in hair and nails Arm MRI scan Aging changes in hormone production Armpit lump Aging changes in immunity Arrhenoblastoma of ovary Aging changes in organs, tissues, and cells Arrhythmias Aging changes in skin Arterial embolism Aging changes in sleep Arterial insufficiency Aging changes in the bones - muscles - joints Arterial stick Aging changes in the breast Arteriogram Aging changes in the face Arthritis Aging changes in the female reproductive system Arthritis - resources Aging changes in the heart and blood vessels Arthroscopy Aging changes in the kidneys and bladder Artificial Insemination Aging changes in the lungs Asbestosis Aging changes in the male reproductive system Ascariasis Aging changes in the nervous system Ascites Aging changes in the senses Aseptic meningitis Aging changes in vital signs Asherman syndrome Aging spots - should you be concerned? Aspartate aminotransferase (AST) blood test Agitation Aspartic acid Agoraphobia Aspergillosis Agranulocytosis Aspergillosis precipitin Aicardi syndrome Asphalt cement poisoning Alanine transaminase (ALT) blood test Aspiration Albinism Aspiration pneumonia Albumin blood (serum) test Aspirin overdose Alcohol and pregnancy Asthma Alcohol use and safe drinking Asthma and allergy resources Alcohol use disorder Asthma in children Alcohol use disorder - resources Astigmatism Alcohol withdrawal Asymptomatic Alcoholic ketoacidosis Asymptomatic bacteriuria Alcoholic liver disease Asymptomatic HIV infection Alcoholic neuropathy Ataxia - telangiectasia Aldolase blood test Atelectasis Aldosterone blood test Atheroembolic renal disease Alkalosis Atherosclerosis Alkaptonuria Athlete's foot Allergen Atopic dermatitis Allergic conjunctivitis Atrial fibrillation or flutter Allergic reactions Atrial myxoma Allergic rhinitis Atrial septal defect (ASD) Allergies - overview Attention deficit hyperactivity disorder Allergy testing - skin Atypical pneumonia Allergy to mold - animal dander - dust Audiometry Aloe Aural polyps Alopecia areata Auscultation ALP - blood test Autism - resources ALP isoenzyme test Autism spectrum disorder Alpha fetoprotein Autism spectrum disorder - Asperger syndrome Alpha-1 antitrypsin blood test Autism spectrum disorder - childhood disintegrative disorder Alpha-1 antitrypsin deficiency Autoerythrocyte sensitivity Alport syndrome Autoimmune disorders ALS - resources Autoimmune hepatitis Alström syndrome Autoimmune liver disease panel Alternating Hemiplegia Autoinoculation Alternative medicine - pain relief Automatic dishwasher soap poisoning Alveolar abnormalities Autonomic dysreflexia Alzheimer - resources Autonomic neuropathy Alzheimer disease Autosomal dominant Amaurosis fugax Autosomal dominant tubulointerstitial kidney disease Ambiguous genitalia Autosomal recessive Amblyopia Avian influenza Ambulatory blood pressure monitoring (ABPM) Avoidant personality disorder Amebiasis Axillary nerve dysfunction