PO (By Mouth)
PO, from the Latin per os, indicates that a medication is taken by mouth.
Definition
PO, from the Latin per os, indicates that a medication is taken by mouth.
Why it matters
The route must match the prescriber's order and be clearly documented to reduce medication errors.
What Should I Document? 100 OASIS Situations Home Health Nurses Face Every Day
100 real OASIS scenarios, worked end to end — clinical situation, common mistake, better approach, and key takeaway. Built around OASIS-E2 (effective April 1, 2026) to turn what you assess into accurate, defensible documentation.
Listen While You Read
Conversations on medication
Episodes from Inside Home Health that put PO (By Mouth) in operational context.
Ep 24Ep 24 · Sep 16, 2026
83% of Healthcare AI Has NO Governance (Here's Why That's Dangerous) | Dr. Lendra James
Dr. Lendra James, DNP, MS, RN, NE-BCWatch 
Ep 22Ep 22 · Jul 27, 2026
How AI Can Give Clinicians Their Time Back
Genevieve FomWatch 
Ep 18Ep 18 · Jun 29, 2026
Building Healthcare AI Without Trust Is a Mistake
Jeanette YatesWatch