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 blunt tip 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.