To Assess a Rectal Temperature Accurately in an Adult, the Nurse

To assess a rectal temperature accurately in an adult, the nurse would:

A) Use a lubricated cover over a blunt tip electronic thermometer.
B) Insert the thermometer 2 to 3 inches into the rectum.
C) Leave the thermometer in place up to 8 minutes if the patient is febrile.
D) Wait 2 to 3 minutes if the patient has recently smoked a cigarette.