Encyclopedia Index A

The HealthAtoZ encyclopedia offers thorough and reader-friendly articles about hundreds of diseases, health issues and medical developments. Each article is authoritative and specific, with references for further study. For major diseases, conditions and health issues, HealthAtoZ offers special centers for in-depth reading.

Abdominal ultrasound Abdominal wall defects Abortion, selective Abortion, therapeutic Abscess Abscess incision & drainage Abuse Acetaminophen Achalasia Achondroplasia Acid phosphatase test Acne Acoustic neuroma Acrocyanosis Acromegaly and gigantism Actinomycosis Acute kidney failure Acute Lower Back Pain Acute lymphangitis Acute poststreptococcal glomerulonephritis Acute stress disorder Addiction Addison's disease Adenoid hyperplasia Adjustment disorders Adrenal gland cancer Adrenal gland scan Adrenal virilism Adrenalectomy Adrenocorticotropic hormone test Adrenoleukodystrophy Adult respiratory distress syndrome Aging Agoraphobia AIDS AIDS tests AIDS/HIV Alanine aminotransferase test Albinism Alcohol-related neurologic disease Alcoholism Alcoholism -- In Depth Aldolase test Aldosterone assay Alemtuzumab Alkaline phosphatase test Allergic bronchopulmonary aspergillosis Allergic purpura Allergic rhinitis Allergies Allergies -- In Depth Allergy tests Alopecia Alpha-fetoprotein test Alpha1-adrenergic blockers Alport syndrome Altitude sickness Alzheimer's -- In Depth Alzheimer's disease Amblyopia Amebiasis Amenorrhea Amino acid disorders screening Aminoglycosides Amnesia Amniocentesis Amputation Amylase tests Amyloidosis Amyotrophic lateral sclerosis Anaerobic infections Anal atresia Anal cancer Anal warts Analgesics Analgesics, opioid Anaphylaxis Anemias Anesthesia, general Anesthesia, local Aneurysmectomy Angina Angiography Angioplasty Angiotensin-converting enzyme inhibitors Angiotensin-converting enzyme test Ankylosing spondylitis Anorectal disorders Anorexia nervosa Anoscopy Anosmia Anoxia Antacids Antenatal testing Antepartum testing Anthrax Anti-hyperuricemic drugs Anti-insomnia drugs Anti-itch drugs Antiacne drugs Antiangina drugs Antianxiety drugs Antiarrhythmic drugs Antiasthmatic drugs Antibiotic-associated colitis Antibiotics Antibiotics, ophthalmic Antibiotics, topical Anticoagulant and antiplatelet drugs Anticonvulsant drugs Antidepressant drugs Antidepressants, tricyclic Antidiabetic drugs Antidiarrheal drugs Antidiuretic hormone (ADH) test Antifungal drugs, systemic Antifungal drugs, topical Antigas agents Antigastroesophageal reflux drugs Antihelminthic drugs Antihemorrhoid drugs Antihistamines Antihypertensive drugs Antimalarial drugs Antimigraine drugs Antimyocardial antibody test Antinausea drugs Antinuclear antibody test Antiparkinson drugs Antiprotozoal drugs Antipsychotic drugs Antipsychotic drugs, atypical Antirheumatic drugs Antiseptics Antispasmodic drugs Antituberculosis drugs Antiulcer drugs Antiviral drugs Anxiety Anxiety disorders Anxiety Disorders -- In Depth Aortic aneurysm Aortic dissection Aortic valve insufficiency Aortic valve stenosis Apgar testing Aphasia Aplastic anemia Appendectomy Appendicitis Arbovirus encephalitis Arrhythmias Arterial embolism Arteriovenous fistula Arteriovenous malformations Arthritis Arthrography Arthroplasty Arthroscopic surgery Arthroscopy Asbestosis Ascites Aspartate aminotransferase test Aspergillosis Aspirin Asthma Asthma in Adults Asthma in Children Astigmatism Ataxia-telangiectasia Atelectasis Atherectomy Atherosclerosis Athlete's foot Athletic heart syndrome Atkins diet Atopic dermatitis Atrial ectopic beats Atrial fibrillation and flutter Atrial septal defect Attention-deficit/Hyperactivity disorder (ADHD) Attention-deficit/Hyperactivity disorder (ADHD) -- In Depth Audiometry Auditory integration training Autism Autoimmune disorders Autopsy Aviation medicine