Q1. The patient is admitted to the medical unit with a diagnosis of rule-out diabetes insipidus (DI). Which instructions should the nurse teach regarding a fluid deprivation test?
- The patient will be asked to drink 100 mL of fluid as rapidly as possible and then will not be allowed fluid for 24 hours
- The patient will be administered an injection of antidiuretic hormone (ADH), and urine output will be measured for four (4) to six (6) hours
- The patient will have nothing by mouth (NPO), and vital signs and weights will be done hourly until the end of the test
- An IV will be started with normal saline, and the patient will be asked to try to hold the urine in the bladder until a sonogram can be done
Show answer and explanation
Answer: C. The patient will have nothing by mouth (NPO), and vital signs and weights will be done hourly until the end of the test
A. The patient is not allowed to drink during the test. B. This test does not require any medications to be administered, and vasopressin will treat the DI, not help diagnose it. C. The patient is deprived of all fluids, and if the patient has DI the urine production will not diminish. Vital signs and weights are taken every hour to determine circulatory status. If a marked decrease in weight or vital signs occurs, the test is immediately terminated. D. No fluid is allowed and a sonogram is not involved.