ATI TEAS (Test of Essential Academic Skills) Version 7English and Language UsageMedium

A pharmacist is reviewing a prescription. The doctor's handwritten note states: 'Administer medication by mouth, once daily.' Which of the following medical abbreviations could be used to represent 'by mouth'?

  1. ASTAT
  2. BPRN
  3. CPO
  4. DIM
Show answer & explanation

Correct answer: C. PO

The abbreviation 'PO' stands for 'per os,' which is Latin for 'by mouth' or 'orally.' This is a standard medical abbreviation for administering medication orally.

Why the other options are wrong

  • A. STAT stands for 'statim,' meaning 'immediately.'
  • B. PRN stands for 'pro re nata,' meaning 'as needed.'
  • D. IM stands for 'intramuscular,' meaning administered into a muscle.

Medical Abbreviation: PO

PO is a medical abbreviation derived from the Latin 'per os,' meaning 'by mouth' or 'orally.'

  • Used in prescriptions and medical orders to indicate oral administration of medication.
  • Essential for clear and unambiguous communication in healthcare.
  • Misinterpretation can lead to medication errors.

Memory trick: Many Abbreviations Mean Many Methods

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