1B
Single
2B
Double
3B
Triple
AAA
Abdominal aortic aneurysm
AABA
Music: 2 (A) sections, a bridge (B), another (A)
AB
At-bat
ABC
Agent Booking Commission
ABC
Always Be Closing
abd.
Abdominal
ABG
Arterial blood gas
ABO
Blood types A, B, O
ABR
Absolute bed rest
AC
Before meals (ante cebum)
ACTH
Adrenocorticotropic hormone
AD
Admitting diagnosis
AD
Advance directive
AD
Alzheimer’s disease
AD
Right ear
ad lib
As desired, freely. Without restriction.
adm.
Admission
ADR
Average Daily Rate
AE
Account Executive
AEB
As evidenced by
AI
Aortic insufficiency
AICD
Automatic implantable cardioverter defibrillator
AIDS
Acquired immunodeficiency syndrome
AK
Above the knee
AKA
Above the knee amputation
aka
Also known as
ALS
Amyotrophic lateral sclerosis
ALT
Alanine aminotransferase (see SGPT)
AM
Morning (after midnight)
AMA
Against medical advice
AMB
Ambulatory, able to walk
amt.
Amount
angio.
Angiogram or angiography
AO
Flyout
API
Application Programming Interface
App
Appearance
approx.
Approximately
appy.
Appendectomy
aPTT
Activated partial thromboplastin time (aPTT or PTT)
AROM
Active range of motion
ARPA
Average Revenue Per Account
ART
Antiretroviral therapy
AS
Latin for “left ear” [ auris sinistra ].
AS
Article Submission
ASA
Acetylsalicylic acid (aspirin)
ASD
Atrial septal defect
ASO
Antistreptolysin-O
AST
Aspartate aminotransferase (aka SGOT)
AT
Axillary temperature
ATC
Around-the-clock
ATP
Adenosine triphosphate
AU
Both ears
AV
Atrioventricular
AVG
Batting Average
B
Bilateral
B&B
Bed and Breakfast
BAM
Black American music
BANT
Budget Authority Need Timeline
BB
Base on Balls
BB
Walk
BCE
Before the Common Era
BDR
Business Development Representative
BEO
Banquet Event Order
BF
Batters Faced
BH
Black Hat
BI
Business Intelligence
BILAT
Bilateral
BIV
Bi‐Ventricular
BK
Balk
BKA
Below the knee amputation
BL
Backlink
BPM
Beats per minute
BTL
Below The Line
℅
“care of”, in the care of . . .
CAPTCHA
Completely Automated Public Turing Test to Tell Computers and Humans Apart
CBT
Chordal Block Technique
CBT
Certified Business Travel
CDP
Customer Data Platform
CF
Citation Flow
CFS
Complimentary Food Service
CG
Complete Game
CGM
Continuous glucose monitoring
CHT
Certified Hospitality Trainer
CIF
Comping in Fourths
CIS
carcinoma in situ
CIS
clinically isolated syndrome
CIS
Case Information Statement
CIS
Continuous Injection System
CLTV
Customer Lifetime Value
CMP
Certified Meeting Planner
COB
Close of Business
COS
Content Optimization System
CPL
Cost Per Lead
CRM
Customer Relationship Management
CRO
Central Reservation Office
CRO
Conversion Rate Optimization
CSII
Continuous subcutaneous insulin infusion