Question

A clinic nurse is providing instructions to a client who is scheduled for a glucose tolerance test. Which instruction should the nurse provide to the client in preparation for the test?

a) Consume a high-fat meal the evening before the test.
b) Fast for at least 8 hours before the test.
c) Avoid water intake on the morning of the test.
d) Take regular medications as scheduled on the day of the test.

Answer 1

The client should fast for at least 8 hours before a glucose tolerance test to ensure accurate results, and water intake is typically allowed, but food or sugary drinks should be avoided during the fasting period.

Step-by-step explanation:

A clinic nurse providing instructions to a client scheduled for a glucose tolerance test should advise the client to fast for at least 8 hours before the test. This preparation is necessary to get accurate baseline blood glucose levels. The test involves a fasting blood glucose measurement, followed by ingestion of a glucose solution, and then subsequent measurement of blood glucose levels at regular intervals to assess the individual's ability to tolerate glucose. This is important for diagnosing conditions like diabetes mellitus. Drinking water may generally be allowed, but consuming food or sugary drinks should be avoided during the fasting period. Clients should consult their healthcare provider about taking regular medications on the day of the test as this can vary.