Commonly Used Abbreviations

• AAA

  Abdominal Aortic Aneurysm
• ABD


  Abdominal / Abdomen
• ABG

  Arterial Blood Gas
• ac 


  Before meal
• ACLS


  Advance Cardiac Life Support
• ACTH


  Adrenocorticotropic Hormones
• ADH


  Antidiuretic Hormone
• ADHD


  Attention-Deficit Hyperactivity Disease
• ACE


  Angiotensin-Converting Enzyme
• ADL


  Activity of Daily Living
• Ad lib


  Freely as desired
• AF


  Atrial Fibrillation
• AFB

  Acid-Fact Bacillus
• AFP


  Alpha Feto Protein
• AHF


  Anti Hemophiliac Factor
• AIDS


  Acquired Immune Disease Syndrome
• AKA


  Above-the-knee Amputation
• Alb


  Albumin
• ALT


  Alanine Aminotransferase
• A.M.


  Morning
• AMA


  Against Medical Advice
• AMI

  Acute Myocardial Infraction
• amt

  Amount
• ANS


  Automatic Nervous System
• ANT


  Anterior
• ANST


  After Negative Skin Testing
• Anterio-posterior 


  AP
• APGAR


  Appearance-Pulse-Grimace-Activity
• Approx


  Approximately
• ARDS


  Acute Respiratory Distress Syndrome
• Amp


  Ampule
• ARMD


  Age-related muscular degeneration
• As


  (Auris sinistra) left ear
• ASA


  Acetylsalicylic acid (aspirin)
• ASAP


  As soon as possible
• ASD


  Atrial septal defect
• ASHD

  Atherosclerotic heart disease
• ATP

  Adenosine triphosphate
• AU


  Both ears
• AV


  Atrioventricular