CNA Practice Test
Vital signs and reportingQuestion 1342 of 1700

A resident just finished a hot drink. How long should you wait to take an oral temperature?

  1. 30 seconds
  2. 2 hours or more
  3. 1 minute
  4. 15 to 25 minutes
Show answer

Correct answer: 15 to 25 minutes

Hot or cold food and drinks can give a false reading.

Source: Nursing Assistant (Reuter), 7.4: Obtaining Vital Signs

Practice vital signs and reporting

Questions last reviewed: 18 October 2026