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Error Prone Abbreviations--Medical Terminology Chapter 2

PSD1
STUDY
PLAY
AD, AS, AU
right ear, left ear, both ears
RISK: mistaken as OD, OS, OU (right/left/both eyes)
Preferred Use: spell out right ear, left ear, both ears
OD, OS, OU
right eye, left eye, both eyes
RISK: mistaken as AD, AS, AU (right/left/both ears)
Preferred Use: spell out right eye, left eye, both eyes
cc
cubic centimeter
RISK: mistaken as units!
Preferred use: use the metric equivalent = mL
DC, D/C
discharge, discontinue
RISK: mistaken for "discontinue" when followed by medications prescribed at the time of discharge
Preferred use: spell out discontinue or discharge
h.s.
bedtime
RISK: mistaken as "half-strength"
Preferred use: spell out bedtime
q.d. (*)
every day
RISK: mistaken for q.i.d. when the period after the "q" is sloppily written to look like an "i"
Preferred use: NEVER USE! Spell out every day or daily
q.o.d. (*)
every other day
RISK: mistaken for q.d. when the "o" is mistaken for a period
Preferred use: NEVER USE! Spell out every other day
SC, SQ, sub-Q
subcutaneous
RISK: mistaken for SL (sublingual) or 5Q (5 everyday)
Preferred use: spell out subcut or subcutaneously
ss (with line on top)
one half
RISK: mistaken as "55"
Preferred use: use one-half or 1/2
>, <
greater than, less than
RISK: mistaken for each other
Preferred use: spell out greater than or less than