An ultrasound of the gallbladder is scheduled for the client with a suspected diagnosis of cholecystitis. Which should the nurse explain to the client about this test? 1. The test is uncomfortable. 2....

An ultrasound of the gallbladder is scheduled for the client with a suspected diagnosis of cholecystitis. Which should the nurse explain to the client about this test?

1. The test is uncomfortable. 2. The test requires that the client be NPO. 3. The test requires the client to lie still for short intervals. 4. The test is preceded by the administration of oral tablets.