Medical encyclopedia: Results 1-633
- A1C (see HbA1c)
- ABO blood typing (see Blood typing)
- ABO incompatibility
- ACE levels
- ACL reconstruction
- ACTH
- ACTH (cosyntropin) stimulation test
- ACTH suppression test (see Dexamethasone suppression test)
- ADH
- AFP plus (see Quadruple screen test)
- AIDS
- AIDS - resources
- AIDS patients and pets (see Pets and the immunocompromised person)
- ALP - blood test
- ALP isoenzyme test
- ALS - resources
- ALT
- APGAR
- APTT (see Partial thromboplastin time (PTT))
- AST
- Aarskog syndrome
- Aase syndrome
- Abacterial cystitis (see Cystitis - noninfectious)
- Abdomen - swollen
- Abdominal CT scan
- Abdominal MRI scan
- Abdominal aortic aneurysm
- Abdominal aortic aneurysm repair - open
- Abdominal arteriogram (see Mesenteric angiography)
- Abdominal bloating
- Abdominal delivery (see C-section)
- Abdominal exploration
- Abdominal exploration - series
- Abdominal fullness prematurely after meals (see Satiety - early)
- Abdominal girth
- Abdominal hernia (see Lump in the abdomen)
- Abdominal hysterectomy (see Hysterectomy)
- Abdominal mass
- Abdominal pain
- Abdominal rigidity
- Abdominal sounds
- Abdominal tap
- Abdominal tenderness (see Point tenderness - abdomen)
- Abdominal thrusts (see Heimlich maneuver)
- Abdominal ultrasound
- Abdominal wall defect repair (see Gastroschisis repair)
- Abdominal wall fat pad biopsy
- Abdominal wall surgery
- Abdominal x-ray
- Abdominoplasty - series
- Abducens paralysis (see Cranial mononeuropathy VI)
- Abetalipoproteinemia (see Bassen-Kornzweig syndrome)
- Ablatio placentae (see Placenta abruptio)
- Abnormal menstrual periods (see Vaginal bleeding)
- Abnormal tooth shape (see Tooth - abnormal shape)
- Abnormality of the urea cycle - hereditary (see Hereditary urea cycle abnormality)
- Abortion - medical
- Abortion - spontaneous (see Miscarriage)
- Abortion - surgical
- Abortion - threatened (see Miscarriage - threatened)
- Abscess
- Abscess - Bartholin's (see Bartholin’s cyst or abscess)
- Abscess - areolar gland (see Subareolar abscess)
- Abscess - brain (see Brain abscess)
- Abscess - epidural (see Epidural abscess)
- Abscess - intra-abdominal (see Intra-abdominal abscess)
- Abscess - peritonsillar (see Peritonsillar abscess)
- Abscess - skin (see Skin abscess)
- Abscess - spinal cord (see Spinal cord abscess)
- Abscess - tooth (see Tooth abscess)
- Abscess scan - radioactive
- Absence seizure (see Petit mal seizure)
- Absent pulmonary valve
- Absolute eosinophil count (see Eosinophil count - absolute)
- Acanthamoeba keratitis (see Corneal ulcers and infections)
- Acanthosis nigricans
- Accelerated hypertension (see Malignant hypertension)
- Accelerated hyperthyroidism (see Thyroid storm)
- Accelerating angina (see Unstable angina)
- Accessory nipples (see Supernumerary nipples)
- Acetaminophen and codeine overdose
- Acetaminophen overdose
- Acetomorphine overdose (see Heroin overdose)
- Acetone bodies (see Serum ketones test)
- Acetone poisoning
- Acetylcholine receptor antibody
- Acetylcholinesterase (see Cholinesterase - blood)
- Achalasia
- Achalasia - esophagectomy (see Esophagectomy - minimally invasive)
- Achalasia - series
- Aches - leg (see Leg pain)
- Aches and pains in bones (see Bone pain or tenderness)
- Achilles tendinitis
- Achilles tendon release (see Clubfoot repair)
- Achondrogenesis
- Achondroplasia
- Acid fast bacilli stain (see Sputum stain for mycobacteria)
- Acid hemolysin test (see Ham test)
- Acid loading test (pH)
- Acid mucopolysaccharides
- Acid perfusion test (see Bernstein test)
- Acid soldering flux poisoning
- Acid-fast stain
- Acidosis
- Acidosis - metabolic (see Metabolic acidosis)
- Acidosis - respiratory (see Respiratory acidosis)
- Acne
- Acne rosacea (see Rosacea)
- Acne-like skin bumps (see Comedones)
- Acoustic neuroma
- Acoustic trauma
- Acquired (adaptive) immunity (see Immune response)
- Acquired bronchiectasis (see Bronchiectasis)
- Acquired growth hormone deficiency (see Growth hormone deficiency - children)
- Acquired hearing loss (see Sensorineural deafness)
- Acquired heart disease (see Pediatric heart surgery)
- Acquired nephrogenic diabetes insipidus (see Diabetes insipidus - nephrogenic)
- Acquired platelet function defect
- Acrochordon (see Cutaneous skin tag)
- Acrodermatitis
- Acrodysostosis
- Acromegaly
- Acromioplasty (see Shoulder arthroscopy)
- Acting-out behaviors (see Temper tantrums)
- Actinic keratosis
- Actinomycosis
- Actinomycosis - pulmonary (see Pulmonary actinomycosis)
- Activity - increased (see Hyperactivity)
- Acupressure and nausea (see Nausea and acupressure)
- Acute
- Acute MI (see Heart attack)
- Acute abdomen (see Peritonitis)
- Acute adrenal crisis
- Acute arterial occlusion - kidney
- Acute back pain (see Low back pain - acute)
- Acute bacterial tracheitis (see Tracheitis)
- Acute bladder infection (see Cystitis - acute)
- Acute cerebellar ataxia
- Acute cholecystitis
- Acute colonic ileus (see Intestinal pseudo-obstruction)
- Acute confusional state (see Delirium)
- Acute cytomegalovirus (CMV) infection
- Acute gastroenteritis (see Bacterial gastroenteritis)
- Acute gout (see Gout)
- Acute hydronephrosis (see Unilateral hydronephrosis)
- Acute idiopathic polyneuritis (see Guillain-Barre syndrome)
- Acute increased intracranial pressure (see Increased intracranial pressure)
- Acute intermittent porphyria (see Porphyria)
- Acute interstitial (allergic) nephritis (see Interstitial nephritis)
- Acute kidney failure
- Acute lymphocytic leukemia (ALL)
- Acute mountain sickness
- Acute myeloid leukemia
- Acute necrotizing ulcerative gingivitis (see Trench mouth)
- Acute nephritic syndrome
- Acute pancreatitis
- Acute prostatitis (see Prostatitis - bacterial acute)
- Acute respiratory distress syndrome
- Acute rheumatic fever (see Rheumatic fever)
- Acute silicosis (see Silicosis)
- Acute sinusitis (see Sinusitis)
- Acute tubular necrosis
- Acute upper airway obstruction
- Adapin overdose (see Doxepin overdose)
- Addiction - drug (see Drug dependence)
- Addictive gambling (see Pathological gambling)
- Addison's disease
- Additives in food (see Food additives)
- Adenocarcinoma - colon (see Colon cancer)
- Adenocarcinoma - endometrium (see Endometrial cancer)
- Adenocarcinoma - lung (see Lung cancer - non-small cell)
- Adenocarcinoma of renal cells (see Renal cell carcinoma)
- Adenocarcinoma of the stomach (see Gastric cancer)
- Adenoid removal
- Adenoid removal - series
- Adenoids - enlarged (see Enlarged adenoids)
- Adenoma - sebaceous (see Sebaceous adenoma)
- Adenoma - secreting (see Prolactinoma)
- Adenoma sebaceum (see Tuberous sclerosis)
- Adenomatous polyps (see Colorectal polyps)
- Adenomyosis
- Adenosine stress test (see Nuclear stress test)
- Adhesion
- Adhesive capsulitis (see Frozen shoulder)
- Adipsia (see Thirst - absent)
- Adjustment disorder
- Adolescent development
- Adolescent pregnancy
- Adolescent test or procedure preparation
- Adrenal glands
- Adrenal medullary imaging (see MIBG scintiscan)
- Adrenal tumor - Cushing syndrome (see Cushing syndrome due to adrenal tumor)
- Adrenalectomy
- Adrenalin - blood (see Catecholamines - blood)
- Adrenalin-urine test (see Catecholamines - urine)
- Adrenergic bronchodilator overdose
- Adrenocortical carcinoma
- Adrenogenital syndrome (see Congenital adrenal hyperplasia)
- Adrenoleukodystrophy
- Adult Still's disease
- Adult diapers (see Urinary incontinence products)
- Adult hypothyroidism (see Hypothyroidism)
- Adult-onset diabetes (see Type 2 diabetes)
- Adumbran overdose (see Oxazepam overdose)
- Advil overdose (see Ibuprofen overdose)
- Aerobic
- Aerobic bacteria
- Aflatoxin
- Aftershave poisoning
- Agammaglobulinemia
- Agaston score (see Heart CT scan)
- Age and exercise (see Exercise and age)
- Age spots (see Liver spots)
- Age-appropriate diet for children
- Age-related cataract (see Cataract)
- Age-related hearing loss
- Age-related macular degeneration (ARMD) (see Macular degeneration - age-related)
- Agglutinins (see Febrile/cold agglutinins)
- Aging changes in body shape
- Aging changes in hair and nails
- Aging changes in hormone production
- Aging changes in immunity
- Aging changes in organs - tissue - cells
- Aging changes in skin
- Aging changes in sleep
- Aging changes in the bones - muscles - joints
- Aging changes in the breast
- Aging changes in the face
- Aging changes in the female reproductive system
- Aging changes in the heart and blood vessels
- Aging changes in the kidneys and bladder
- Aging changes in the lungs
- Aging changes in the male reproductive system
- Aging changes in the nervous system
- Aging changes in the senses
- Aging changes in vital signs
- Aging spots - should you be concerned
- Agitation
- Agnogenic myeloid metaplasia (see Myelofibrosis)
- Agoraphobia (see Panic disorder with agoraphobia)
- Agranulocytosis
- Aicardi syndrome
- Air around the lung (see Collapsed lung)
- Air leak syndrome (see Pneumothorax - infants)
- Akathisia (see Restless leg syndrome)
- Albinism
- Albright's hereditary osteodystrophy (see Pseudohypoparathyroidism)
- Albumin - blood (serum)
- Albumin - urine (see Protein - urine)
- Alcohol and pregnancy
- Alcohol in pregnancy (see Fetal alcohol syndrome)
- Alcohol test - breath (see Breath alcohol test)
- Alcohol use and safe drinking
- Alcohol withdrawal
- Alcohol withdrawal - delirium tremens (see Delirium tremens)
- Alcoholic encephalopathy (see Wernicke-Korsakoff syndrome)
- Alcoholic ketoacidosis
- Alcoholic liver disease
- Alcoholic neuropathy
- Alcoholism - resources
- Alcoholism and alcohol abuse
- Aldolase test
- Aldosterone
- Aldosterone - urine (see 24-hour urinary aldosterone excretion rate)
- Alertness - decreased
- Aliseum overdose (see Diazepam overdose)
- Alkalosis
- Alkalosis - respiratory (see Respiratory alkalosis)
- Alkaptonuria
- Allergen
- Allergic conjunctivitis
- Allergic dermatitis (see Contact dermatitis)
- Allergic reaction - drug (medication) (see Drug allergies)
- Allergic reactions
- Allergic rhinitis
- Allergic vasculitis
- Allergies
- Allergy testing - skin
- Allergy to food (see Food allergy)
- Allocar overdose (see Cardiac glycoside overdose)
- Allogenic bone marrow transplant (see Bone marrow transplant)
- Alocasia plant poisoning (see Caladium plant poisoning)
- Aloe
- Alopecia (see Hair loss)
- Alopecia areata
- Alopecia in men (see Male pattern baldness)
- Alopecia in women (see Female pattern baldness)
- Alpha fetoprotein
- Alpha fetoprotein - series
- Alpha thalassemia (see Thalassemia)
- Alpha-1 antitrypsin deficiency
- Alpha-1 antitrypsin test
- Alpha-L-iduronate deficiency (see Hurler syndrome)
- Alpha-tocopherol (see Vitamin E)
- Alphamul overdose (see Castor oil overdose)
- Alport syndrome
- Alström syndrome
- Alteplase (see Thrombolytic therapy)
- Altered mental status (see Unconsciousness - first aid)
- Alternative medicine - pain relief
- Alternative treatments for vaginal dryness (see Vaginal dryness alternative treatments)
- Alupent (see Pentazocine overdose)
- Alveolar abnormalities
- Alveolar proteinosis (see Pulmonary alveolar proteinosis)
- Alveolar rhabdomyosarcoma (see Rhabdomyosarcoma)
- Alveolitis (see Diffuse interstitial lung disease)
- Alzheimer's disease
- Alzheimer’s - resources
- Amalox overdose (see Zinc oxide overdose)
- Amaurosis fugax
- Ambiguous genitalia
- Amblyopia
- Ambulatory electrocardiography (see Holter monitor (24h))
- Amebiasis
- Amebic liver abscess
- Amelogenesis imperfecta
- Amenorrhea - primary
- Amenorrhea - secondary (see Secondary amenorrhea)
- American mountain fever (see Colorado tick fever)
- American nightshade poisoning (see Pokeweed poisoning)
- American trypanosomiasis (see Chagas disease)
- Amilon (see Phenindamine overdose)
- Amino acids
- Amino acids blood test (see Plasma amino acids)
- Aminoaciduria
- Aminophylline overdose
- Amitriptyline and perphenazine overdose
- Amitriptyline hydrochloride overdose
- Ammonia - blood
- Ammonia poisoning
- Ammonium hydroxide poisoning
- Amnesia (see Memory loss)
- Amniocentesis
- Amniocentesis - series
- Amniotic constriction bands
- Amniotic fluid
- Amphetamine intoxication (see Methamphetamine overdose)
- Amphetamines - screen (see Toxicology screen)
- Amputation - foot (see Leg or foot amputation)
- Amputation - traumatic
- Amsler grid test (see Home vision tests)
- Amylase - blood
- Amylase - urine
- Amyloid - primary (see Primary amyloidosis)
- Amyloidosis - cardiac (see Cardiac amyloidosis)
- Amyloidosis - cerebral (see Cerebral amyloid angiopathy)
- Amyloidosis - hereditary (see Hereditary amyloidosis)
- Amyloidosis - secondary systemic (see Secondary systemic amyloidosis)
- Amyotrophic lateral sclerosis
- Anaerobic
- Anaerobic bacteria
- Anal fissure
- Anal fissure - series
- Analgesic nephropathy
- Analgesics (see Pain medications - narcotics)
- Analgesics (see Pain medications - non narcotic)
- Anaphylactoid purpura (see Henoch-Schonlein purpura)
- Anaphylaxis
- Anaplastic thyroid cancer
- Anasarca (see Swelling)
- Anastomosis
- Ancylostoma caninum (see Creeping eruption)
- Androgen insensitivity syndrome
- Anemia
- Anemia - B12 deficiency
- Anemia - Fanconi's (see Fanconi's anemia)
- Anemia - hemolytic (see Hemolytic anemia)
- Anemia - hemolytic - caused by chemicals or toxins (see Hemolytic anemia caused by chemicals and toxins)
- Anemia - hemolytic due to G6PD deficiency (see Glucose-6-phosphate dehydrogenase deficiency)
- Anemia - immune hemolytic (see Immune hemolytic anemia)
- Anemia - immune hemolytic - secondary to drugs (see Drug-induced immune hemolytic anemia)
- Anemia - iron deficiency (see Iron deficiency anemia)
- Anemia - iron deficiency - children (see Iron deficiency anemia - children)
- Anemia - sickle cell (see Sickle cell anemia)
- Anemia of chronic disease
- Anencephaly
- Anesthesia - conscious (see Conscious sedation for surgical procedures)
- Aneurysm
- Aneurysm in the brain
- Aneurysm repair - cerebral (see Brain aneurysm repair)
- Aneurysm repair - endovascular (see Endovascular embolization)
- Angel dust overdose (see Phencyclidine overdose)
- Angel's trumpet (see Jimsonweed poisoning)
- Angina
- Angina - stable (see Stable angina)
- Angina - variant (see Coronary artery spasm)
- Angio-osteohypertrophy (see Klippel-Trenaunay syndrome)
- Angiodysplasia of the colon
- Angioedema
- Angiofibroma - juvenile (see Juvenile angiofibroma)
- Angiogram of the lungs (see Pulmonary angiography)
- Angiography - head (see Cerebral angiography)
- Angiography - heart (see Coronary angiography)
- Angiography - kidney (see Renal arteriography)
- Angiography - left heart (see Left heart ventricular angiography)
- Angiography - magnetic resonance (see Magnetic resonance angiography)
- Angiography - right heart (see Right heart ventriculography)
- Angiography of the extremity (see Extremity angiography)
- Angioma - cherry (see Cherry angioma)
- Angioma cavernosum (see Birthmarks - red)
- Angioplasty and stent placement - carotid artery
- Angioplasty and stent placement - heart
- Angioplasty and stent placement - peripheral arteries
- Angle-closure glaucoma (see Glaucoma)
- Anhidrosis (see Sweating - absent)
- Anhidrotic ectodermal dysplasia (see Ectodermal dysplasia)
- Anhydrous Benedict's reagent poisoning (see Clinitest tablets poisoning)
- Animal bite - first aid - series
- Animal bites
- Anions (see Ions)
- Anisocoria
- Ankle pain
- Ankle replacement
- Ankle sprain - series
- Ankle swelling (see Foot, leg, and ankle swelling)
- Ankyloglossia (see Tongue tie)
- Ankylosing spondylitis
- Annual eye exam (see Standard ophthalmic exam)
- Annular pancreas
- Anomalous left coronary artery from the pulmonary artery
- Anorchia
- Anorectal abscess
- Anorectal malformation (see Imperforate anus)
- Anorectal malformation repair (see Imperforate anus repair)
- Anorexia nervosa
- Anorexia nervosa - resources (see Eating disorders - resources)
- Anorgasmia (see Orgasmic dysfunction)
- Anoscopy
- Anosmia (see Smell - impaired)
- Anovulatory bleeding (see Dysfunctional uterine bleeding (DUB))
- Anoxic encephalopathy (see Cerebral hypoxia)
- Antacids overdose (see Calcium carbonate with magnesium overdose)
- Anterior
- Anterior cruciate ligament (ACL) injury
- Anterior cruciate ligament repair - series
- Anterior hip replacement (see Minimally invasive hip replacement)
- Anterior knee pain
- Anterior tibial pain (see Shin splints)
- Anterior uveitis (see Uveitis)
- Anterior vaginal wall repair
- Anterior vaginal wall repair (surgical treatment of urinary incontinence) - series
- Anthrax
- Anthrax - blood test
- Anthrosilicosis (see Coal worker's pneumoconiosis)
- Anti-DNase B
- Anti-P antibody (see Donath-Landsteiner test)
- Anti-glomerular basement membrane
- Anti-glomerular basement membrane antibody disease (see Goodpasture syndrome)
- Anti-insulin antibody test
- Anti-reflux surgery
- Anti-reflux surgery - children
- Anti-rust product poisoning
- Anti-smooth muscle antibody
- Antibiotic sensitivity testing (see Sensitivity analysis)
- Antibiotic-associated colitis (see Pseudomembranous colitis)
- Antibiotics - colds and flu (see Colds and flus - antibiotics)
- Antibody
- Antibody titer
- Anticoagulant rodenticides poisoning
- Anticoagulant-prothrombin time (see Prothrombin time (PT))
- Antidiarrheal drug overdose
- Antifreeze poisoning
- Antigen
- Antimitochondrial antibody
- Antinuclear antibody panel
- Antiparietal cells antibodies test
- Antiseptic mouth rinse overdose (see Mouthwash overdose)
- Antisocial personality disorder
- Antistreptolysin O titer
- Antithrombin III
- Antithrombin III deficiency - congenital (see Congenital antithrombin III deficiency)
- Antithyroglobulin antibody
- Antithyroid microsomal antibody
- Anxiety (see Stress and anxiety)
- Anxiety disorder (see Generalized anxiety disorder)
- Anxiety in children (see Stress in childhood)
- Aortic aneurysm - thoracic (see Thoracic aortic aneurysm)
- Aortic aneurysm repair - endovascular
- Aortic angiography
- Aortic arch anomaly (see Double aortic arch)
- Aortic arch syndrome
- Aortic coarctation (see Coarctation of the aorta)
- Aortic dissection
- Aortic insufficiency
- Aortic stenosis
- Aortic valve surgery - minimally invasive
- Aortic valve surgery - open
- Aortobifemoral bypass (see Peripheral artery bypass - leg)
- Aortopulmonary window
- Apert syndrome
- Aphthous stomatitis (see Mouth sores)
- Aphthous ulcer (see Canker sore)
- Apitoxin poisoning (see Bee poison)
- Aplastic
- Aplastic anemia
- Apnea (see Breathing - slowed or stopped)
- Apnea - obstructive sleep apnea syndrome (see Obstructive sleep apnea)
- Apnea monitor - infants (see Heart-respiratory monitor - infants)
- Apnea monitor for home use - infants (see Home apnea monitor - infants)
- Apnea of prematurity
- Apolipoprotein B100
- Apolipoprotein CII
- Apoplexy
- Appendectomy
- Appendectomy - series
- Appendicitis
- Appetite - decreased
- Appetite - increased
- Applanation (see Tonometry)
- Appropriate for gestational age (AGA)
- Apraxia
- Aquarium granuloma (see Swimming pool granuloma)
- Arachnodactyly
- Arginine test (see Growth hormone stimulation test)
- Arias syndrome (type II Crigler-Najjar) (see Crigler-Najjar syndrome)
- Arisaema triphyllum poisoning (see Jack-in-the-pulpit poisoning)
- Arm CT scan
- Arm MRI scan
- Arm and leg movements - uncontrollable (see Movement - uncontrolled or slow)
- Armpit lump
- Arnold Pick disease (see Pick disease)
- Arrhenoblastoma (see Sertoli-Leydig cell tumor)
- Arrhenoblastoma of ovary
- Arrhythmias
- Art line - infants (see Peripheral arterial line - infants)
- Arterial blood gas analysis (see Blood gases)
- Arterial bypass leg - series
- Arterial embolism
- Arterial insufficiency
- Arterial stick
- Arteriogram
- Arteriosclerosis obliterans (see Peripheral artery disease - legs)
- Arteriosclerotic heart disease (see Coronary heart disease)
- Arteriovenous malformation - cerebral
- Arteriovenous malformation - pulmonary (see Pulmonary arteriovenous fistula)
- Arteritis - temporal (see Temporal arteritis)
- Arthralgia (see Joint pain)
- Arthritis
- Arthritis - neck (see Cervical spondylosis)
- Arthritis - osteoarthritis (see Osteoarthritis)
- Arthritis - psoriatic (see Psoriatic arthritis)
- Arthritis - resources
- Arthritis - rheumatoid (see Rheumatoid arthritis)
- Arthrodesis (see Spinal fusion)
- Arthrography (see Joint x-ray)
- Arthroplasty - shoulder (see Shoulder replacement)
- Arthroplasty - unicompartmental knee (see Partial knee replacement)
- Arthroscopy - hip (see Hip arthroscopy)
- Articulation deficiency (see Speech disorders - children)
- Articulation disorder (see Phonological disorder)
- Artificial kidneys (see Dialysis)
- Artificial pacemaker (see Heart pacemaker)
- Artificial sphincter (AUS) - urinary (see Inflatable artificial sphincter)
- Arylsulfatase A deficiency (see Metachromatic leukodystrophy)
- Asbestosis
- Ascariasis
- Ascending colectomy (see Large bowel resection)
- Ascites
- Ascorbic acid (see Vitamin C)
- Asherman syndrome
- Aspartic acid
- Aspartoacylase deficiency (see Canavan disease)
- Asperger syndrome
- Aspergilloma (see Pulmonary aspergilloma)
- Aspergillosis
- Aspergillosis precipitin
- Asphalt cement
- Aspiration
- Aspiration pneumonia
- Aspirin overdose
- Assisted reproductive technology (see In vitro fertilization (IVF))
- Asteatotic eczema (see Xerosis)
- Asthma
- Asthma - children
- Asthma - occupational exposure (see Occupational asthma)
- Asthma and allergy - resources
- Astigmatism
- Astrocytoma - adults (see Brain tumor - primary - adults)
- Astrocytoma - children (see Brain tumor - children)
- Asymmetric septal hypertrophy (see Hypertrophic cardiomyopathy)
- Asymptomatic
- Asymptomatic HIV infection
- Asymptomatic bacteriuria
- At-home ovulation prediction test (see Ovulation home test)
- Atarax overdose (see Hydroxyzine overdose)
- Ataxia (see Movement - uncoordinated)
- Ataxia - telangiectasia
- Atelectasis
- Atheroembolic renal disease
- Atherosclerosis (see Hardening of the arteries)
- Athetosis (see Movement - uncontrollable)
- Athlete's foot
- Atopic dermatitis
- Atrial fibrillation or flutter
- Atrial myxoma
- Atrial septal defect (ASD)
- Atrial septal defect repair (see Congenital heart defect - corrective surgery)
- Atrioventricular (AV) canal defect (see Endocardial cushion defect)
- Atrophic vaginitis (see Vaginal dryness)
- Atrophy of the muscles (see Muscle atrophy)
- Atropine with diphenoxylate overdose (see Lomotil overdose)
- Attention deficit hyperactivity disorder
- Atypical Parkinson’s disease (see Secondary parkinsonism)
- Atypical pneumonia
- Audiometry
- Auditory brainstem response (see BAER - brainstem auditory evoked response)
- Augmentation mentoplasty (see Chin augmentation)
- Aural polyps
- Auscultation
- Autism
- Autism - resources
- Autoerythrocyte sensitivity
- Autograft (see Bone graft)
- Autoimmune disorders
- Autoimmune hepatitis
- Autoimmune liver disease panel
- Autoimmune thyroiditis (see Chronic thyroiditis (Hashimoto’s disease))
- Autoinoculation
- Automated perimetry exam (see Visual field)
- Automatic dishwasher soap poisoning
- Automobile safety - teenage drivers (see Safe driving for teens)
- Autonomic hyperreflexia
- Autonomic neuropathy
- Autosomal dominant
- Autosomal dominant polycystic kidney disease (see Polycystic kidney disease)
- Autosomal recessive
- Autotitrating positive airway pressure (see Nasal CPAP)
- Avascular necrosis (see Osteonecrosis)
- Avian influenza
- Avoidant personality disorder
- Axid overdose (see H2 receptor antagonists overdose)
- Axillary nerve dysfunction
- Azotemia - prerenal (see Prerenal azotemia)