The PQRST mnemonic is used to assist with which aspect of patient care?

• A. Pain assessment: Provoking factors, Quality, Region/Radiation, Severity, Timing.
• B. Respiratory assessment: Pace, Rhythm, Rate, Tidal volume.
• C. Nutritional assessment: Protein, Carbohydrate, Fat, Fiber.
• D. Mobility assessment: Movement, Balance, Gait, Flexibility.

Answer: (B)

PQRST is a focused approach to pain assessment that guides you to explore how pain begins and changes, not just that it’s present. It helps you ask aboutProvoking factors—what makes the pain better or worse;Quality—the character of the pain (sharp, dull, burning, etc.);Region or radiation—where the pain is and whether it spreads;Severity—the intensity, often using a scale; and Timing—when it started and how it progresses over time. This structure covers the essential details clinicians use to understand pain and plan relief or further evaluation.

That’s why it fits pain assessment best. The other domains described require different assessment frameworks: respiration is evaluated with parameters like pace, rhythm, rate, and tidal volume; nutrition is considered in terms of dietary components; and mobility is assessed by movement, balance, gait, and flexibility. For example, using PQRST to ask a patient about chest pain—what provokes it, the quality of the pain, its location and radiation, how bad it is, and when it began—helps tailor management and decisions about testing.