39. A patient is scheduled for a 3hr glucose tolerance test at an outpatient laboratory. After verifying the patients identity which of the following actions should the phlebotomist take

Answer: C

Explanation:

Confirm the patient fasted for the proper length of time

Ensuring that the patient has fasted for the required period prior to a glucose tolerance test is crucial for obtaining accurate results. This typically involves a fasting period of at least 8 hours before the test.

A) Instruct the patient to finish drinking the glucose within 30 min

While it is important for the patient to consume the glucose solution within the specified time, this action is secondary to confirming that the patient has fasted properly. If the patient has not fasted adequately, the results of the test will be invalid regardless of how quickly they drink the glucose.

B) Prepare the patient's middle finger for capillary collection

Preparing the middle finger for capillary collection is not appropriate in this context, as a glucose tolerance test usually requires venipuncture for accurate blood sampling. Additionally, this step is irrelevant until the fasting status is confirmed.

C) Confirm the patient fasted for the proper length of time

This is the correct action, as verifying the patient’s fasting status ensures that the test results will be accurate. The glucose tolerance test is sensitive to the patient’s fasting state, and confirming this step is essential before proceeding with the test.

D) Obtain the patient's current vitals

While obtaining vital signs can be part of patient assessment, it is not a priority before conducting a glucose tolerance test. The focus should be on ensuring that the patient has met the fasting requirements, as this directly impacts the test's validity.

Conclusion

Confirming that the patient has fasted for the proper length of time is essential for ensuring the accuracy of the glucose tolerance test results. All other options, while relevant to general patient care, do not address the critical prerequisite of fasting, making them less important in this specific scenario.