Sig codes (Signa codes)are abbreviations used in prescriptions to indicate how a medication should be taken or applied.
Why Other Options Are Incorrect:
q.s. (quantum satis):Means "a sufficient quantity," NOT"shake well."❌
IN:Refers tointranasal, NOTintramuscular (IM).❌
q.i.d. (quater in die):Means"four times a day,"NOT"three times a day".❌
????Reference:PTCB Official Sig Code List,Institute for Safe Medication Practices (ISMP) Approved Abbreviations.
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