Medical Abbreviations
Prefixes
Suffixes
Orders & Vitals
Systems & Procedures
100

This abbreviation means "do not resuscitate."

What is DNR?

100

This prefix means "without."

What is a- or an-?

100

This suffix means “inflammation.”

What is -itis?

100

This order means “as needed.”

What is PRN?

100

This abbreviation refers to “gastrointestinal.”

What is GI?

200

This stands for “complete blood count.”

What is CBC?

200

This prefix means “fast.”

What is tachy-?

200

This means “surgical removal.”

What is -ectomy?


200

This abbreviation means “four times a day.”

What is QID?

200

This stands for “electrocardiogram.”

What is EKG?

300

This means “shortness of breath.”

What is SOB?

300

This prefix means “inside"

What is intra-?

300

This suffix means “abnormal softening.”

What is -malacia?


300

This means “blood pressure.”

What is BP?

300

This abbreviation means “physical therapy.”

What is PT?

400

This abbreviation refers to “chest x-ray.”

What is CXR?

400

This prefix means “before.”

What is ante-?

400

This suffix means “study of.”

What is -ology?

400

This abbreviation stands for “before meals.”

What is AC?

400

This means “arterial blood gases.”

What is ABG’s?

500

This abbreviation is used for “temperature, pulse, and respiration.”

What is TPR?

500

This prefix means “abnormal, painful, or difficult.”

What is dys-?

500

This suffix means “narrowing.”

What is -stenosis?

500

This abbreviation stands for “hour of sleep (bedtime).”

What is HS?

500

This means “range of motion.”

What is ROM?