- What is it: Apnea Condition
- What is it: Aquatic Therapy
- What is it: Arachnoid Cyst
- What is it: Arachnoiditis Condition
- What is it: Aromatherapy
- What is it: Arsenic Poisoning
- What is it: Arterial Blood Gas Analysis
- What is it: Arterial Blood Gas Test (ABG)
- What is it: Arterial Line Placement
- What is it: Arteriovenous Fistula (AVF)
- What is it: Arteriovenous Malformation (AVM)
- What is it: Arthrocentesis Procedure
- What is it: Arthroplasty Procedure
- What is it: Artichoke Benefits
- What is it: Articular Disc
- What is it: Articular Surface
- What is it: Aseptic Meningitis
- What is it: Aseptic Technique
- What is it: Aspartame (Artificial Sweetener)
- What is it: Aspartate Aminotransferase (AST)
- What is it: Asperger’s Syndrome
- What is it: Aspergillosis Infection
- What is it: Asphyxia Condition
- What is it: Astaxanthin (Antioxidant)
- What is it: Asthma Exacerbation
- What is it: Astigmatism Condition
- What is it: Astigmatism Correction
- What is it: Asymptomatic Bacteriuria
- What is it: Asymptomatic Carrier
- What is it: Ataxia Disorder
- What is it: Atherogenic Diet
- What is it: Atherosclerosis
- What is it: Atherosclerotic Plaque
- What is it: Atopic Dermatitis
- What is it: Atrial Fibrillation (AFib)
- What is it: Atrial Flutter
- What is it: Atrial Myxoma
- What is it: Atrial Septal Defect (ASD)
- What is it: Atrioventricular (AV) Node
- What is it: Atrioventricular Block (AV Block)
- What is it: Atrophic Gastritis
- What is it: Atypical Antidepressants
- What is it: Atypical Antipsychotic Medications
- What is it: Atypical Antipsychotics
- What is it: Atypical Cells
- What is it: Atypical Cells (Cervical)
- What is it: Atypical Depression
- What is it: Auditory Brainstem Response (ABR)
- What is it: Auditory Hallucination
- What is it: Auditory Health
- What is it: Auditory Neuropathy
- What is it: Auditory Processing Disorder
- What is it: Auditory Processing Skills
- What is it: Auricular Acupressure
- What is it: Auricular Acupuncture
- What is it: Auricular Therapy
- What is it: Autogenic Training
- What is it: Autoimmune Encephalitis
- What is it: Autoimmune Hemolytic Anemia (AIHA)
- What is it: Autoimmune Lymphoproliferative Syndrome (ALPS)
- What is it: Autoimmune Polyendocrine Syndrome
- What is it: Autoimmune Polyneuropathy
- What is it: Autoimmune Thyroiditis
- What is it: Autologous Transplant
- What is it: Autologous Transplant
- What is it: Autonomic Dysreflexia
- What is it: Avian Influenza
- What is it: Avocado Nutrients
- What is it: Axial Skeleton
- What is it: Axillary Lymph Nodes
- What is it: Axillary Nerve Injury
- What is it: Axonal Injury
- What is it: Acute Coronary Syndrome (ACS)
- What is it: Acute Glomerulonephritis
- What is it: Acute Lymphoblastic Leukemia (ALL)
- What is it: Acute Pancreatitis
- What is it: Acute Respiratory Distress Syndrome (ARDS)
- What is it: Adenoid Hypertrophy
- What is it: Adenosine Triphosphate (ATP)
- What is it: Adenovirus Infection
- What is it: Adhesive Capsulitis
- What is it: Adrenal Cortex Hormones
- What is it: Adrenal Gland Disorders
- What is it: Adrenal Insufficiency
- What is it: Adrenocorticotropic Hormone (ACTH)
- What is it: Aerobic Endurance
- What is it: Affective Disorder
- What is it: Agave Nectar
- What is it: Agenesis of the Corpus Callosum
- What is it: Aggressive Periodontitis
- What is it: Airway Clearance Techniques
- What is it: Airway Obstruction
- What is it: Alkaline Diet
- What is it: Alkaline Phosphatase (ALP)
- What is it: Alkaline Water
- What is it: Alkaline-forming Foods
- What is it: Allergic Bronchopulmonary Aspergillosis (ABPA)
- What is it: Allogeneic Stem Cell Transplant
- What is it: Allograft (Medical procedure)
- What is it: Allograft Transplant
- What is it: Allosteric Regulation
- What is it: Alopecia Areata
- What is it: Alopecia Totalis
- What is it: Alpha Waves (Brain Waves)
- What is it: Altitude Training
- What is it: Alveolar Ventilation
- What is it: Alveoli Function
- What is it: Ambient Air Quality
- What is it: Amniocentesis Procedure
- What is it: Amniotic Fluid Embolism
- What is it: Amputation Prevention
- What is it: Amputation Rehabilitation
- What is it: Amygdala Function
- What is it: Amylin Hormone
- What is it: Amyloidosis Condition
- What is it: Amyotrophic Lateral Sclerosis (ALS)
- What is it: Anaemia Alleviation
- What is it: Analgesic Properties
- What is it: Anaphylactic Shock
- What is it: Anaphylaxis Reaction
- What is it: Anaplastic (Medical term)
- What is it: Anechoic Lesion
- What is it: Aneurysm Clipping
- What is it: Angioplasty
- What is it: Ankylosing Spondylitis
- What is it: Anorexia Nervosa
- What is it: Anosmia Condition
- What is it: Antegrade Amnesia
- What is it: Anterior Chamber of the Eye
- What is it: Anterior Cord Syndrome
- What is it: Anterior Cruciate Ligament (ACL)
- What is it: Anterior Cruciate Ligament (ACL) Injury
- What is it: Anterior Ischemic Optic Neuropathy (AION)
- What is it: Anterior Pelvic Tilt
- What is it: Anterior Shoulder Dislocation
- What is it: Anterior Uveitis
- What is it: Anti-aging Foods
- What is it: Antibiotic Resistance
- What is it: Antibody Titer Test
- What is it: Anti-cellulite Techniques
- What is it: Anticoagulant Medications
- What is it: Antidepressant Foods
- What is it: Antidepressant Medications
- What is it: Antifungal Medications
- What is it: Anti-inflammatory Diet
- What is it: Antimicrobial Stewardship
- What is it: Antinuclear Antibodies (ANA)
- What is it: Antinuclear Antibody Test (ANA)
- What is it: Antioxidant-rich Foods
- What is it: Antioxidant-rich Teas
- What is it: Antioxidant-rich Vegetables
- What is it: Antiplatelet Medications
- What is it: Antipsychotic Medications
- What is it: Antipyretic Medications
- What is it: Antiretroviral Therapy (ART)
- What is it: Antiseptic Precautions
- What is it: Anxiolytic Herbs
- What is it: Aortic Aneurysm Repair
- What is it: Aortic Regurgitation
- What is it: Aortic Valve Stenosis
- What is it: Apgar Score
- What is it: Aphasia Condition
- What is it: Aplastic Anemia
- What is it: Abdominal Exercises
- What is it: Abduction Movement
- What is it: Ablation Therapy
- What is it: Ablation Therapy (Cardiac)
- What is it: Acetylcholine (Neurotransmitter)
- What is it: Achilles Tendon Rupture
- What is it: Achilles Tendon Stretch
