A

A/O – alert and oriented

A&P – anatomy & Physiology, assessment & plan

AAA -abdominal aorta aneurysm

ABCDE – airway, breathing, circulation, disability, exposure

ABD – abdominal

Abdominal pain – pain in the stomach

ABG – arterial blood gas

Abn – abnormal

ABX – antibiotics

AC – before meals

AC/HS – before meals / at bedtime

ACE – angiotensin converting enzyme

Ack – acknowledge

ACLS – advanced cardiac life support

ACP – advanced clinical practitioner

ACS – acute coronary syndrome

AD – advance directive

ADA – Americans with disabilities act

ADAT – advance diet as tolerated

ADD – attention deficit disorder

ADE – adverse drug event

ADH – antidiuretic hormone

ADHD – attention deficit hyperactivity disorder

Ad lib – as desired

ADLs – activities of daily living

ADM – admission

ADR – adverse drug reaction

AED – automated external defibrillator, antiepileptic drug

AF – atrial fibrillation, atrial flutter, amniotic fluid

A fib – atrial fibrillation

Ag – silver

AHA – American Heart Association

AHTR – acute hemolytic transfusion reaction

AKA – above the knee amputation

AKI – acute kidney injury

ALARA – as low as reasonably achievable

ALB – albumin

A line – arterial line

ALL – Acute Lymphocytic Leukemia

ALP – alkaline phosphatase

ALT – alanine aminotransferase

AMA – against medical advice

Amb – ambulate, ambulatory

AMI – acute myocardial infarction

AMLS – advanced medical life support

Amp – amputated, ampule

AMS – altered mental status

AMT – amount

AND – allow natural death

Anemia – low hemoglobin

Anes – anesthesia

Angina – chest pain

ANA – antinuclear antibody

ANX – anxiety

AO – awake, alert, oriented

AOCD – anemia of chronic disease

AOI – area of impact

AP – apical

Apnea – no breathing

APP – advanced practice provider

Approx – approximately

Appy – appendectomy

APT – antiplatelet trialist

APTT – activated partial thromboplastin time

AR – aortic regurgitation, artificial respiration

ARB – angiotensin receptor blocker

ARDS – acute respiratory distress syndrome

ARI – acute respiratory infection

ARNP – advanced registered nurse practitioner

Arrhythmia – irregular heart rate

Arthralgia – joint pain

AS – aortic stenosis

ASA – acetylsalicylic acid (aspirin)

Asp – aspiration

AST – aspartate aminotransferase

ATC – around the clock

Atherosclerosis – blocked arteries

ATTN – attending

AUB – abnormal uterine bleeding

AVF – aortic valve flow

AVM – arteriovenous malformation

AVR – aortic valve replacement

A/W – associated with

AX – axillary

AXR – abdominal X-ray