Harrison's Manual of Medicine
- 'pentobarb coma'
- 'signet-ring sign'
- 'tram tracks'
- 5'-nucleotidase (5'-NT)
- abacavir, for HIV infection
- abciximab, for thrombotic disorders
- abdominal angina
- abdominal radiography
- abdominal wall disorders, pain in
- abdominoperineal resection, for anal cancer
- Abiotrophia infections
- abiraterone, for prostate cancer
- abortion
- ABVD regimen, for Hodgkin's disease
- acamprosate, for alcoholic rehabilitation
- Acanthamoeba
- acarbose, for diabetes mellitus
- accident prevention
- acetazolamide, for periodic paralysis
- achalasia
- acid-fast bacilli
- acid maltase deficiency
- acidosis
- Acinetobacter infections
- acitretin, for psoriasis
- acne
- acrodermatitis chronica atrophicans
- actinic keratosis
- acupuncture, for chronic back pain
- acute disseminated encephalomyelitis (ADEM)
- acute interstitial pneumonia (AIP)
- acute retroviral syndrome
- acute stress disorder
- adaptive immune system, deficiencies of
- Addison's disease
- adefovir, for chronic hepatitis B
- ADEM (acute disseminated encephalomyelitis)
- adenosine deaminase deficiency
- adenovirus infection
- adenovirus vaccine
- adenylate kinase 2 deficiency
- ADH (antidiuretic hormone)
- adnexal mass
- ADPKD (autosomal dominant polycystic kidney disease)
- adrenalectomy, for prostate cancer
- adrenomyeloneuropathy
- adult inclusion conjunctivitis (AIC)
- adult T cell leukemia/lymphoma (ATL)
- advance directives
- advanced life support (ALS)
- advanced sleep-wake phase syndrome
- AED (automated external defibrillator)
- Aeromonas infections
- aerotolerant organisms
- aflatoxin, hepatocellular carcinoma and
- agammaglobulinemia
- agglutination
- agitation, in terminally ill patient
- agoraphobia
- AIC (adult inclusion conjunctivitis)
- AIP (acute interstitial pneumonia)
- air plethysmography
- airway obstruction
- alanine aminotransferase (ALT)
- albiglutide, for diabetes mellitus
- alcoholic liver disease
- alcoholic polyneuropathy
- alcohol intoxication
- Alcohol Use Disorders Identification Test (AUDIT)
- alcohol withdrawal
- alendronate, for osteoporosis
- alirocumab, for dyslipidemia
- alkaline-encrusted cystitis
- alkali therapy, for nephrolithiasis
- alkalosis
- alloimmunization
- allylamines, for dermatophyte infections
- almotriptan, for migraine
- alogliptin, for diabetes mellitus
- alosetron, for irritable bowel syndrome
- alpha-adrenergic antagonists, for vasospastic disorders
- alphavirus infections
- alprazolam
- alprostadil injection, for erectile dysfunction
- ALS (advanced life support)
- ALT (alanine aminotransferase)
- alteplase, for thrombotic disorders
- aluminum phosphate binders, for hyperphosphatemia
- amantadine, for Parkinson's disease
- ambrisentan, for pulmonary hypertension
- amebiasis
- aminoglutethimide, for prostate cancer
- 4-aminopyridine, for weakness in multiple sclerosis
- 5-aminosalicylic acid (5-ASA), for inflammatory bowel disease
- aminotransferases
- amlodipine, for pulmonary hypertension
- ammonia, blood, in liver disease
- amodiaquine, for malaria
- amphetamine
- ampicillin-clavulanate, for diverticulitis
- amylase, serum
- amylin agonists, for diabetes mellitus
- amyloid angiopathy
- anaerobic bacteria
- anagrelide, for essential thrombocytosis
- anal condyloma
- anal fissure
- analgesia
- analgesic nephropathy
- analgesics
- anastrozole, for breast cancer
- Ancylostoma braziliense infections
- Ancylostoma duodenale infections
- androgen abuse
- androgen deprivation, for prostate cancer
- androgen excess, in female
- anesthetics, for delirium
- angioma, senile
- anidulafungin
- anisocytosis
- anistreplase, for thrombotic disorders
- ankle-brachial index
- ankylosing spondylitis
- Ann Arbor staging system, for Hodgkin's disease
- annular skin lesion
- anomia
- anorectal disease
- anorectal gonorrhea
- anorexia, in terminally ill patient
- anorexia nervosa
- anosmia
- anosognosia
- anterocollis
- anthropometrics
- antibodies to cell surface or synaptic antigens
- antibodies to intracellular neuronal proteins
- anticholinesterase drugs, for myasthenia gravis
- antidiuretic hormone (ADH)
- antiepileptic drugs
- antifungal agents
- antigenic drift
- antigenic shift
- anti-glomerular basement membrane disease
- antileukotrienes, for asthma
- anti-LKM antibodies
- anti-MOG antibodies
- antimonial compounds, for leishmaniasis
- antiphospholipid syndrome (APS)
- antipyretics
- antisocial personality disorder
- antisynthetase syndrome
- antithymocyte globulin, for aplastic anemia
- antitussive agents
- antivenom
- antrectomy
- anuria
- anxiety attack
- anxiety disorders
- aortic aneurysm
- aortography
- apalutamide, for prostate cancer
- aphthous stomatitis
- aplastic crisis, in parvovirus infections
- apo A-V deficiency
- apo B inhibitor
- APOL1 gene
- apomorphine, for Parkinson's disease
- apraxia
- APS (antiphospholipid syndrome)
- arachnoiditis, lumbar adhesive
- Arcanobacterium haemolyticum infections
- armodafinil
- aromatase inhibitors, for breast cancer
- arsenic trioxide, for AML
- artemether, for malaria
- artemether-lumefantrine, for malaria
- artemisinin derivatives, for malaria
- arterial embolism
- arteriovenous fistula, dural
- artesunate, for malaria
- arthritis mutilans
- arthropathy, chronic
- arthropod bite/sting
- arthroscopic therapy, for osteoarthritis
- 5-ASA (5-aminosalicylic acid), for inflammatory bowel disease
- ASB (asymptomatic bacteriuria)
- asbestos-related disease
- ASD (atrial septal defect)
- aspiration, of bone marrow
- assisted reproductive technology
- AST (aspartate aminotransferase)
- asterixis
- asthenia
- asthma exacerbations
- astrocytoma
- asymptomatic bacteriuria (ASB)
- asystole
- ataxia-telangiectasia
- atazanavir, for HIV infection
- atheroembolism
- athetosis
- ATL (adult T cell leukemia/lymphoma)
- atovaquone-proguanil
- ATP7B mutations
- atrial flutter
- atrial premature beats
- atrial septal defect (ASD)
- atrial tachycardia
- atrophy (skin lesion)
- atypical parkinsonism
- AUDIT (Alcohol Use Disorders Identification Test)
- Auer rods
- auscultation
- autoantibody disorders
- autoimmune autonomic ganglionopathy
- autoimmune hemolysis
- autologous transfusion
- automated external defibrillator (AED)
- autonomic dysfunction, paraneoplastic
- autosomal dominant polycystic kidney disease (ADPKD)
- AV block: see atrioventricular block
- avoidant personality disorder
- axial spondyloarthritis
- axillary lymph node carcinoma
- axitinib, for renal cancer
- 5-azacytidine, for myelodysplastic syndromes
- azelastine, for allergic rhinitis
- aztreonam, for sepsis/septic shock