Answer to Question 1
ANS: D
Risk for falls is the highest priority diagnosis for this patient because rushing to the bathroom can lead to loss of balance and serious injury. Walking to the bathroom at night is even more dangerous because of low lighting conditions and sleepiness. Living alone with a history of nocturia does not demonstrate risk-prone health behavior. Risk for impaired skin integrity would be appropriate for the patient's potential skin breakdown caused by incontinence and skin contact with urine.
Answer to Question 2
ANS: B
No preparation is needed for kidney and bladder ultrasound other than having the patient drink lots of fluid beforehand. The patient is instructed not to use the toilet so that the bladder will be filled and easy to visualize. No contrast dye, enemas, or fasting is required.