What type of specimen is required for a glucose tolerance test?

For a glucose tolerance test, the appropriate specimen required is both blood and urine samples. This test is designed to evaluate how well your body processes glucose, and it typically involves measuring blood glucose levels at set intervals after ingesting a glucose solution.

In addition to blood samples, urine samples can be collected to check for glucose levels in the urine, which can provide further insights into how the body is handling glucose over that period. The combination of blood and urine samples allows for a comprehensive assessment of glucose metabolism and can help diagnose conditions such as diabetes mellitus.

The other options do not encompass the testing requirements adequately. Urine samples alone would not provide the necessary monitoring of blood glucose levels, and blood samples alone would overlook any renal handling of glucose that could be evident in urine. Saliva samples are not utilized in this context for glucose tolerance testing, as they do not provide the relevant metabolic information needed for this assessment.