The practical nurse (PN) observes unlicensed assistive personnel (UAP) preparing to obtain the rectal temperature of a 2-year-old child with leukemia. Which action should the PN take?

Advise the UAP to take a tympanic rather than rectal temperature.

Remind the UAP to lubricate the thermometer before insertion.

Instruct the UAP to report the results to the PN immediately.

Observe the UAP to ensure the thermometer is inserted correctly.