Critical Care Registered Nurse (CCRN) Practice Exam

What is a common nursing concern regarding PET scanning?

1. Patients may experience dizziness

2. Radiation exposure can be dangerous

3. Insertion of an I.V. may be required

4. Patients need to be sedated

The correct answer is: Insertion of an I.V. may be required

Insertion of an intravenous (IV) line is often necessary for a PET scan, as the procedure typically requires the administration of a radioactive tracer. This tracer is usually injected into a vein to allow for the visualization of metabolic processes within the body during the scan. The need for IV access is a practical consideration, as it facilitates the rapid and controlled delivery of the tracer just before the imaging takes place. While concerns regarding radiation exposure are valid, PET scans are designed to deliver doses of radiation that are considered low and acceptable for diagnostic purposes. Most patients are able to tolerate the procedure without requiring sedation, as it is generally non-invasive and does not cause significant discomfort. Additionally, while some patients may experience dizziness after the procedure or during the tracer injection, this is not a primary concern associated specifically with PET scans. Hence, the need for IV insertion stands out as a relevant and common nursing concern in this context.