Medically po means oral, and it is usually found mostly as a letter abbreviation on a medical order form or a nurse’s executive order. Medical institutions need to work carefully, not a single error, but at the same time there must be a certain work efficiency, so the clinic has developed a set of consensus Latin abbreviations to replace the Chinese characters, not only to reduce the workload, but also to make the doctor’s orders, the implementation of the list of simple, clear, easy to work. PO is the meaning of oral in the mode of administration, in addition to the commonly used abbreviations are: ivdrip for intravenous drip, im for intramuscular injection, iv intravenous injection, ih subcutaneous injection. Frequency of administration is abbreviated as: qd once daily, bid twice daily, tid 3 times daily, qid 4 times daily, qod every other day, qh every hour, q2h every 2 hours, etc. You should ask your healthcare provider if you have any questions during the consultation.