Common Clinical AbbreviationsHESI A2 cheat sheet

Shorthand on orders

17 key facts 5 practice questions Reviewed Oct 2026

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Timing

bid twice daily
tid three times
qid four times
prn as needed
stat immediately
ac before meals
pc after meals

Route

PO by mouth
IV intravenous
IM intramuscular
SubQ subcutaneous
NPO nothing by mouth

Measures

mg milligram
mcg microgram
mL milliliter
kg kilogram

Caution

Some abbreviations are banned as unsafe — write them out

Key takeaway

Shorthand on orders

Before you read

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Question 1 of 5

A patient reporting 'syncope' has experienced:

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