The Washington Manual of Medical Therapeutics
- Abacavir
- Abdominal infections
- Acetaminophen
- Acetylsalicylic acid (ASA)
- Acid–base disturbances
- Acidemia
- Acquired C1 INH deficiency
- Acromegaly
- Actinomycosis
- Active immunization
- Acute bacterial prostatitis
- Acute bronchitis
- Acute cholecystitis
- Acute coronary reperfusion
- Acute eosinophilic leukemia
- Acute heart failure (AHF)
- Acute hypertensive episodes
- Acute interstitial nephritis (AIN)
- Acute mitral regurgitation
- Acute moderate hypophosphatemia
- Acute pericarditis
- Acute renal failure (ARF)
- Acute respiratory distress syndrome (ARDS)
- Acute rhinosinusitis
- Acute severe hypophosphatemia
- Acute spinal cord dysfunction
- Acute urticaria
- Acute vasodilator testing, pulmonary hypertension
- Acyclovir, for encephalitis
- Adenosine
- Adjunctive medical therapy
- Adrenal failure
- Adrenal insufficiency
- β-Adrenergic blockers
- α-Adrenergic receptor antagonists
- Advanced cardiac life support algorithms
- Adverse drug reaction (ADR)
- adverse events (AEs)
- Agitation
- Airway management
- Airway pressure release ventilation (APRV)
- Albuminuria
- Albuterol
- Alcoholic liver disease
- Alcohol septal ablation
- Aldolase
- Aldosterone antagonists
- Alkalemia
- Allergens
- Allergic bronchopulmonary aspergillosis (ABPA)
- Allergy(ies)
- Alpha-1 antitrypsin deficiency
- Altered mental status
- alveolar ventilation
- Alveolar ventilation
- Alzheimer disease (AD)
- Amantadine, for influenza virus infection
- Ambrisentan
- Ambulation
- Amebiasis
- Amiloride
- Amiodarone
- Amlodipine
- Amoxicillin–clavulanic acid
- Amphetamines
- Amphotericin B deoxycholate
- Amphotericin B formulations
- Ampicillin
- Ampicillin–sulbactam
- Amyloidosis
- Anaerobic myonecrosis
- Anaphylactoid reaction
- Anaplasmosis
- Andexanet alfa
- Aneurysm
- Angioedema
- Animal bites
- Anorectal disorders
- Antiarrhythmic therapy
- Antibiotics, cystic fibrosis
- Anticholinergics
- Anti-COVID-19 agents
- Anticytomegalovirus agents
- Antidromic atrioventricular reentrant tachycardia (A-AVRT)
- Antiherpetic agents
- Antihypertensive agent
- Anti-inflammatory therapy
- Anti-ischemic therapy
- Antimicrobial resistance
- Antimicrobial susceptibility testing
- Antimicrobial therapy
- Anti-orthopoxvirus agents
- Antiplatelet agents
- Antipsychotics
- Antithrombotic management
- Anxiety
- Aortic dissection
- Aortic stenosis (AS)
- Aplastic anemia
- Apnea
- Apnea-hypopnea index (AHI)
- Appendicitis
- Aqueous PCN G
- Arboviruses
- Argon-plasma coagulation
- Armodafinil
- Arrhythmias
- Arterial blood gas (ABG)
- Arteriography
- Arteriovenous malformations
- Asbestos-induced lung disease
- Ascending cholecystitis
- ascites
- Aseptic meningitis
- Aspergillosis
- Aspirin-exacerbated respiratory disease (AERD)
- Assist-control (AC) ventilation
- Asymptomatic bacteriuria
- Asymptomatic hypermagnesemia
- Asymptomatic hypomagnesemia
- Atenolol
- Atezolizumab
- Atheroembolic disease
- Atherosclerotic cardiovascular disease (ASCVD)
- Atopic disease, eosinophilia in
- Atrial flutter (AFL)
- Atrial septostomy
- Atrioventricular node reentrant tachycardia (AVNRT)
- Atrioventricular reentrant tachycardia (AVRT)
- Atropine
- Autoimmune hemolytic anemia
- Autoimmune hepatitis
- Autosomal dominant polycystic kidney disease (ADPKD)
- Avatrombopag
- Azathioprine
- Azithromycin
- Azoles
- Aztreonam