A & B & C Abbreviations

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A
AAA	abdominal aortic aneurysm
A-a gradient	alveolar to arterial gradient
AAD	antibiotic-associated diarrhea
AAO	alert, awake, and oriented
A&O	alert & oriented
AAS	acute abdominal series
ABD	abdomen
ABG	arterial blood gas
AC	before eating
ACLS	advanced cardiac life support
ACTH	adrenocorticotropic hormone
ADH	anti-diuretic hormone
ADR	adverse drug reaction. | acute dystonic reaction
ad lib	as much as needed
AED	antiepileptic drug
AF	atrial fibrillation or afebrile
AFB	acid-fast bacilli
AFP	alpha-fetoprotein
A /G	albumin/globulin ratio
AI	aortic insufficiency
AKA	above the knee amputation
ALD	alcoholic liver disease
ALL	acute lymphocytic leukemia
amb	ambulate
AML	acute myelogenous leukemia
ANA	antinuclear antibody
ANS	autonomic nervous system
AOB	alcohol on breath
AODM	adult onset diabetes mellitus
AP	anteroposterior or abdominal - perineal
ARDS	acute respiratory distress syndrome
ARF	acute renal failure
AS	aortic stenosis
ASAP	as soon as possible
ASCVD	atherosclerotic cardiovascular disease
ASD	atrial septal defect
ASHD	atherosclerotic heart disease
AV	atrioventricular
A-V	arteriovenous
A-VO2	arteriovenous oxygen
B
BBB	bundle branch block
BCAA	branched chain amino acids
BE	barium enema
BEE	basal energy expenditure
bid	twice a day
BKA	below the knee amputation
BM	bone marrow or bowel movement
BMR	basal metabolic rate
BOM	bilateral otitis media
BP	blood pressure
BPH	benign prostatic hypertrophy
BPM	beats per minute
BRBPR	bright red blood per rectum
BRP	bathroom priviledges
BS	bowel or breath sounds
BUN	blood urea nitrogen
BW	body weight
BX	biopsy
C
c	with
C&S	culture and sensitivity
CA	cancer
Ca	calcium
CAA	crystalline amino acids
CABG	coronary artery bypass graft
CAD	coronary artery disease
CAT	computerized axial tomography
CBC	complete blood count
CBG	capillary blood gas
CC	chief complaint
CCU	clean catch urine or cardiac care unit
CCV	critical closing volume
CF	cystic fibrosis
CGL	chronic granulocytic leukemia
CHF	congestive heart failure
CHO	carbohydrate
CI	cardiac index
CML	chronic myelogenous leukemia
CMV	cytomegalovirus
CN	cranial nerves
CNS	central nervous system
CO	cardiac output
C/O	complaining of
COLD	chronic obstructive lung disease
COPD	chronic obstructive pulmonary disease
CP	chest pain or cerebral palsy
CPAP	continuous positive airway pressure
CPK	creatine phosphokinase
CPR	cardiopulmonary resuscitation
CRCL	creatinine clearance
CRF	chronic renal failure
CRP	C-reactive protein
CSF	cerebrospinal fluid
CT	computerized tomography
CVA	cerebrovascular accident or costovertebral angle
CVAT	CVA tenderness
CVP	central venous pressure
CXR	chest X-ray