COPE Health Scholars Practice Test

What does "PO" indicate in terms of medication administration?

1. Per os: administer by mouth

2. Per operation: administer before surgery

3. Post operatively: administer after surgery

4. Per order: administer as prescribed

The correct answer is: Per os: administer by mouth

The term "PO" stands for "per os," which is a Latin phrase meaning "by mouth." This terminology is commonly used in medical contexts to indicate that a medication should be taken orally. The significance of this administration route lies in its ease and convenience for both patients and healthcare providers. Many medications can be effectively absorbed when ingested, making oral administration a common and preferred route for many patients, especially when non-invasive methods are desired. In contrast, other options given pertain to different contexts within medication administration. For instance, "per operation" suggests a timing related to surgical procedures, while "post operatively" refers to medications given after surgery, and "per order" indicates that medications are administered according to specific prescriptions. However, only "per os" directly relates to oral medication administration. Thus, the correct answer reflects the most straightforward and commonly used term in clinical practice regarding how to take medication.