Ace the Phlebotomy Tech Challenge 2025 – Stick It to the Test and Succeed!

Question: 1 / 400

Patient must fast how many hours before drawing blood for FBS, GTT?

4-6 hrs

6-8 hrs

8-10 hrs

It is important for a patient to fast before drawing blood for FBS (fasting blood sugar) or GTT (glucose tolerance test) in order to get accurate results. This is because food and drink can affect blood sugar levels and can lead to inaccurate readings. Typically, a patient should fast for around 8-10 hours before having blood drawn for these tests.

Option A (4-6 hours) may not provide enough time for the body to process and regulate blood sugar levels after a meal.

Option B (6-8 hours) may still not be enough time, especially if the patient had a large or high-calorie meal before the fasting period.

Option D (12-14 hours) may be too long of a fasting period and could lead to low blood sugar levels (hypoglycemia) in patients with diabetes or other conditions.

Overall, option

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12-14 hrs

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