suffix
abbreviations
root words
prefix
initialisms
100

-algia

 pain

100

prn

as needed

100

cardi/o

heart

100

tetra-

four

100

VO

 verbal order

200

-centesis

surgical puncture

200

djd 

degenerative joint disease

200

hepat/o

liver

200

macro-

large

200

a&o

alert and oriented

300

-tripsy

crushing/grinding

300

op

osteoporosis 

300

nephr/o

kidney

300

tachy-

fast

300

c/o

complains of

400

-rrhaphy

suture/suturing

400

h/o

history of

400

vert/a

spine

400

neo-

new

400

qod

every other day

500

-pexy 

surgical fixation

500

ra

rheumatoid arthritis

500

gastr/o

stomach

500

mal-

bad/inadequate 

500

qid 

four times per day