Home Glossary Letter I IU
IU
Abbreviation Medical Terminology
International unit. On the Joint Commission Do Not Use list: misread as IV or the number 10. TJC says write International Unit; ISMP also accepts units.
Related terms D/C Can mean discharge or discontinue. Error-prone: medications have been stopped too early. Write discharge or… HCTZ Hydrochlorothiazide, a diuretic. ISMP: do not abbreviate; HCTZ can be misread as hydrocortisone. Write the… hs, HS Lowercase hs means at bedtime; HS has meant half-strength, and each is misread as the other. ISMP: write HS… IN Intranasal. Error-prone: misread as IM or IV. Write NAS or intranasal. MgSO4 Magnesium sulfate. On the Do Not Use list: confused with morphine sulfate. Write magnesium sulfate. MS Multiple sclerosis. As a drug abbreviation for morphine sulfate it is on the Do Not Use list; write the drug… MSO4 Morphine sulfate. On the Do Not Use list: confused with magnesium sulfate. Write morphine sulfate. OD, OS, OU Right eye, left eye, each eye. Error-prone: confused with AD, AS, AU (ears), and OD with once daily. Write… Study Medical Terminology
IV