- Abarelix (Plenaxis), for prostate cancer
- Abdomen
- Abdominal aortic aneurysm
- Abdominocentesis, for peritonitis
- Abortion, spontaneous
- Abruptio placentae
- Abscess, anorectal
- Absorptiometry, x-ray, dual energy, in osteoporosis
- Acetaminophen (Tylenol)
- Acetazolamide (Diamox)
- Acetylcholine receptor antibody test, in myasthenia gravis
- Acetylsalicylic acid, for endometriosis
- Acid-ash diet, for urinary tract infection
- Acid-base imbalances
- Acid-fast bacilli sputum, in tuberculosis
- Acidosis
- Acoustic neurinoma
- Acquired immunodeficiency syndrome (AIDS)
- Acromegaly
- ACTH stimulation test, in adrenal insufficiency
- Acute/adult respiratory distress syndrome (ARDS)
- Acute idiopathic demyelinating polyneuropathy
- Acute kidney injury (AKI)
- Acute motor axonal neuropathy (AMAN)
- Acute otitis media (AOM)
- Acyclovir (Zovirax)
- Addison's anemia
- Addison's disease
- Adefovir dipivoxil (Hepsera), for hepatitis
- Adenectomy, transsphenoidal, for Cushing's syndrome
- Adenocarcinoma
- Adenoma, pituitary
- Adenosine, for junctional dysrhythmias
- Adenovirus, tonsillitis from
- Adhesive films, for pressure ulcers
- Adrenal androgen synthesis inhibitor, for prostate cancer
- Adrenal crisis, acute
- Adrenalectomy
- Adrenal insufficiency
- Adrenergic agents, centrally acting, for hypertension
- Adrenocorticotropic hormone (ACTH)
- Adriamycin
- Adult/acute respiratory distress syndrome (ARDS)
- Air embolism
- Airway, impaired
- Akinesia, in Parkinson disease
- Alanine aminotransferase (ALT)
- Albumin
- Albuterol, for emphysema
- Albuterol aerosol, for bronchiolitis
- Alcohol use
- Aldosterone
- Alendronate (Fosamax)
- Alginates, for pressure ulcers
- Alkaline phosphatase
- Alkaline reflux gastritis
- Alkalizing agent, for chronic renal failure
- Alkalosis
- Alkylating agents
- Allergic purpura
- Allergic reaction
- Almotriptan, for migraine headache
- Alpha-1 antitrypsin level, in emphysema
- Alpha-adrenergic blockers
- Alpha-adrenergic drugs, for neurogenic bladder
- Alpha- and beta-adrenergic agonists, for hypertension
- Alpha-glucosidase inhibitors, for diabetes mellitus
- 5-alpha reductase inhibitor, for benign prostatic hyperplasia
- ALS (amyotrophic lateral sclerosis)
- Alteplase (t-PA, Activase)
- AlternaGEL, for esophageal diverticula
- Aluminum carbonate (Basaljel)
- Aluminum hydroxide (Amphojel)
- Aluminum salts, for gastroesophageal reflux disease
- Alzheimer's disease
- Amantadine, for influenza
- Amantadine hydrochloride (Symmetrel)
- Ambrisentan (Letairis), for pulmonary hypertension
- Aminoglutethimide, for prostate cancer
- Aminoglycosides
- Amiodarone, for ventricular dysrhythmias
- Amlodipine, for hypertension
- Ammonium chloride, for hypochloremia
- Amniocentesis, in chorioamnionitis
- Amoxicillin
- Amoxicillin-clavulanate potassium, for pyelonephritis
- Amphetamines, overdose and withdrawal symptoms of
- Amphojel, for esophageal diverticula
- Amphotericin B, for candidiasis
- Ampicillin
- AMPLE mnemonic, in trauma assessment
- Amputation
- Amrinone, for myocardial contusion
- Amylase
- Amyloidosis
- Amyotrophic lateral sclerosis (ALS)
- Analgesia
- Anaphylaxis
- Anemia
- Anesthesia
- Aneurysm(s)
- Angina pectoris
- Angiography
- Angioplasty, balloon catheter
- Angiotensin-converting enzyme (ACE) inhibitors
- Angiotensin II receptor antagonist, for hypertension
- Ankle arm index, in amputation
- Anorectal abscess
- Anorectal fistula
- Anorexia nervosa
- Antacids
- Anterior cord syndrome
- Anteromedial temporal resection (AMTR), for epilepsy
- Anthracenedione (mitoxantrone), for acute leukemia
- Anthracycline (idarubicin, daunorubicin), for acute leukemia
- Anti-acetylcholine receptor antibody, in myasthenia gravis
- Antiandrogens, for prostate cancer
- Antianginal agents
- Antianginal agents, for coronary artery disease
- Antibacterials
- Antibiotics
- Anticholinergics
- Anticholinesterase drugs, for myasthenia gravis
- Anticoagulants
- Anticonvulsants
- Anti-cyclic citrullinated peptide antibodies, in rheumatoid arthritis
- Antidepressants
- Antidiabetics, for diabetes mellitus
- Antidiarrheal agents
- Antidiuretic hormone (ADH)
- Antidiuretics, for gastritis
- Antidysrhythmics
- Antiemetic, for migraine headache
- Antiestrogens, for breast cancer
- Antifungal agents
- Antigen testing, in cytomegalovirus infection
- Antihistamines
- Antihypertensives
- Anti-infectives
- Anti-inflammatory(ies)
- Antilipemic agents, for coronary artery disease
- Antimalarial, for lupus erythematosus
- Antimetabolite, for sickle cell disease
- Antimicrobials
- Antimuscarinic drugs, for neurogenic bladder
- Antineoplastic agents
- Antinuclear antibody
- Antiplatelet agents
- Antiproliferative drugs, for human papillomavirus
- Antiprotozoals, for toxoplasmosis
- Antipsychotics
- Antipyretics
- Antiretroviral therapy, for HIV/AIDS
- Antiseptic, urinary
- Antispasmodic agents, for irritable bowel syndrome
- Antithrombin III, in disseminated intravascular coagulation
- Antitissue transglutaminase antibody, in celiac disease
- Antitubercular agents
- Antitussives, for Pneumocystis carinii pneumonia
- Antiulcer agent, for gastroesophageal reflux disease
- Antiviral agents
- Anusol suppositories, for hemorrhoids
- Aortic aneurysm
- Aortic angiography, in aortic valve insufficiency
- Aortic valve insufficiency
- Aortic valve stenosis
- Apheresis, for chronic leukemia
- Aplastic anemia
- Aplastic crisis
- Apparent life-threatening events, SIDS and
- Appendectomy
- Appendicitis
- Aqueous crystalline penicillin G, for syphilis
- Arabinosylcytosine (araC), for acute leukemia
- Arboviruses
- ARDS (acute respiratory distress syndrome)
- Arrhythmia, sinus
- Arterial blood gases (ABGs)
- Arterial occlusive disease
- Arterial pressure monitoring, in arterial occlusive disease
- Arteriography, ultrasound, in arterial occlusive disease
- Arteriosclerosis
- Arteriosclerosis obliterans
- Arteriovenous dialysis access, external, care of
- Arteriovenous fistula, care of
- Arthritis
- Arthrodesis, for degenerative joint disease
- Arthrogram, in tendinitis
- Arthroplasty, for degenerative joint disease
- Aschoff bodies, in rheumatic fever
- ASO titer, in rheumatic fever
- Asparaginase, for acute leukemia
- Aspartate transaminase (AST)
- Aspiration, fine-needle, in fibrocystic breast condition
- Aspirin
- Asthma
- Astrocytoma
- Atelectasis
- Atenolol
- Atherosclerosis
- Atopic dermatitis
- Atorvastatin, for hyperlipoproteinemia
- Atracurium (Tracrium)
- Atrial dysrhythmias
- Atrial fibrillation
- Atrial flutter
- Atropine
- Atropine sulfate, for emphysema
- Atypical antipsychotics, for Alzheimer's disease
- Autonomic dysreflexia
- Autonomic reflexia
- Autosomal dominant polycystic kidney disease (ADPKD)
- Axonal injury, diffuse
- Azathioprine (Imuran)
- Azithromycin (Zithromax)
Diseases and Disorders