A
- Ablation
- ABR (Auditory Brainstem Response) Test
- Abscess
- Abstinence
- Acceptability
- Access to affordable essential drugs
- Accessibility of health care
- Accountability
- Accreditation
- Acetaminophen
- Acetyl cysteine
- Acetylsalicylic acid (aspirin)
- Acid sensing ion channels
- Acquired immunodeficiency syndrome (AIDS)
- Activities of daily living
- Acupuncture / acupressure
- Acute care (short-stay)
- Acute HIV infection
- Acute intoxication
- Acute pain
- Acute urinary retention
- Acyclovir sodium
- Addiction
- Adenocarcinoma
- Adenosine 5-triphosphate (ATP)
- Adherence
- Adhesions
- Adjustment disorders
- Adjuvant
- Adjuvant analgesics
- Advance care directives
- Advance care planning
- Advanced kidney disease
- Advanced kidney disease: care of the dying
- Advanced kidney disease: end of life care
- Adverse drug reaction
- Advocacy
- Aetiology
- Affect
- Affordability
- Age-adjusted mortality rate
- Age-specific mortality rate
- Ageing
- Agitation (psychomotor agitation)
- Agonist
- Agonist / antagonist medication
- AIDS
- AIDS dementia complex
- AIDS encephalopathy
- AIDS-related cancer
- AIDS-related complex
- Akathisia
- Alendronate sodium
- Alfentanil hydrochloride
- Allied health personnel
- Allodynia
- Allogenic bone marrow transplant
- Allow natural death order (AND)
- Aloe vera gel
- Alopecia
- Alpha-amino-3-hydroxy-5 methyl-4 isoxazole-propionic acid (AMPA)
- Alprazolam
- Ambulatory care
- American ginseng
- Aminophylline
- Amnesia
- Ampicillin trihydrate
- Amyotrophic lateral sclerosis (ALS)
- Amyotrophic lateral sclerosis: diagnostic criteria
- Analgesia
- Analgesic tolerance
- Analysis of variance (ANOVA)
- Anemia
- Anesthesia
- Anesthesia dolorosa
- Angiogenesis
- Angiography
- Anorexia cachexia syndrome
- Antagonist
- Anti-tussives
- Antibiotic
- Antibody
- Anticipatory grief
- Antidepressant
- Antiemetics
- Antigen
- Antioxidants
- Antiretroviral (ARV): classes of drugs
- Antiretroviral therapy
- Anxiety
- Anxiolytic
- Aphasia
- Arachidonic acid
- Aromatherapy
- Ascites in cancer patients
- Aspartate
- Assessment
- Astler-Coller staging system
- Asymptomatic cancer
- Ataxia
- Audit circle
- Autonomic neuropathy
- Autonomy
- Availability
- Average lenght of care
- Average length of stay
