Question

why might a nurse mismeasure a patients temperature? because the patient has become sicker because the thermometer is broken

Explanation:

A broken thermometer can lead to inaccurate temperature readings, causing a mismeasurement. A patient becoming sicker is not a direct cause of mismeasurement by the nurse; it affects the actual body - temperature value, not the act of mismeasuring.

Answer:

because the thermometer is broken