Which site is used to measure core temperature in a febrile elderly patient?

Which site is used to measure core temperature in a febrile elderly patient?

• A. Rectal
• B. Oral
• C. Axillary
• D. Skin

Answer: (A)

Rectal temperature is used because it most accurately reflects the body's core temperature, which is crucial when evaluating fever in older adults. Surface and oral readings can be affected by environment, perfusion, dehydration, or oral factors, leading to less reliable results in the elderly. The rectal route provides a closer estimate of core temperature, making it the preferred choice when precise measurement is needed. If you use this site, ensure proper consent, privacy, and technique with a lubricated probe and appropriate depth to maintain safety and comfort.

Rectal temperature is used because it most accurately reflects the body's core temperature, which is crucial when evaluating fever in older adults. Surface and oral readings can be affected by environment, perfusion, dehydration, or oral factors, leading to less reliable results in the elderly. The rectal route provides a closer estimate of core temperature, making it the preferred choice when precise measurement is needed. If you use this site, ensure proper consent, privacy, and technique with a lubricated probe and appropriate depth to maintain safety and comfort.