When taking an oral temperature, how long should you wait after eating or drinking?

When taking an oral temperature, how long should you wait after eating or drinking?

• A. 5 minutes
• B. 30 minutes
• C. 15 minutes
• D. 60 minutes

Answer: (B)

Oral temperatures are influenced by anything in the mouth, including recent food or drinks. A hot beverage or meal can raise the reading, while a cold one can lower it. Waiting about 30 minutes after eating or drinking lets the mouth return to its baseline temperature and for saliva and ambient effects to settle, so the measurement more accurately reflects the body's true temperature. If you need a reading sooner, consider using a different route or note that the result may be affected and recheck later.

Oral temperatures are influenced by anything in the mouth, including recent food or drinks. A hot beverage or meal can raise the reading, while a cold one can lower it. Waiting about 30 minutes after eating or drinking lets the mouth return to its baseline temperature and for saliva and ambient effects to settle, so the measurement more accurately reflects the body's true temperature. If you need a reading sooner, consider using a different route or note that the result may be affected and recheck later.