Prefixes
Suffixes
Root Words
Directional Terms
Common Abbreviations
100

Without, not, no

What is a-/an-?

100

Inflammation

What is -itis?

100

Heart

What is cardi/o?

100

Toward the midline

What is medial?

100

Blood pressure

What is BP?

200

Away from

What is ab-?

200

Surgical removal

What is -ectomy?

200

Kidney

What is nephr/o or ren/o?

200

Away from the point of attachment

What is distal?

200

Heart rate

What is HR?

300

Toward, near

What is ab-?

300

Pain

What is -algia or -dynia?

300

Lung

What is pneumo or pulmon/o?

300

Toward the front

What is anterior or ventral?

300

Immediately (stat)

What is STAT?

400

Across, through

What is trans-?

400

Abnormal condition (often from infection)

What is -osis?

400

Nerve

What is neur/o?

400

Lying face down

What is prone?

400

Red blood cell

What is RBC?

500

Excessive, above normal

What is hyper-?

500

Surgical fixation

What is -desis?

500

Liver

What is hepat/o?

500

Both sides

What is bilateral?

500

Nothing by mouth

What is NPO?