OGT Patient Preparation and Pre-Test Requirements 3

Question 1

How should the glucose beverage be stored before administration during an OGTT?

Accepted Answer

Refrigerated and used per manufacturer guidelines

Answer

The glucose solution should be refrigerated and used within the manufacturer's specified expiration to ensure potency and safety.

Question 2

Which of the following conditions may lead to a false-negative OGTT result?

Accepted Answer

Both B and C

Answer

Both prolonged fasting and recent heavy exercise can lower baseline and post-load glucose, leading to falsely normal OGTT results.

Question 3

What is the typical volume of fluid in which the standard 75 g glucose load is dissolved?

Accepted Answer

200–300 mL

Answer

The 75 g glucose is typically dissolved in 200–300 mL of water to produce the standard oral glucose solution.

Question 4

Patients should inform their provider about all medications before an OGTT because:

Accepted Answer

Some drugs can cause false-positive or false-negative glucose readings

Answer

Certain drugs such as corticosteroids, thiazide diuretics, and beta-blockers can significantly alter glucose levels, affecting test accuracy.

Question 5

Which of the following dietary habits in the days before an OGTT could produce a false-positive result?

Accepted Answer

Eating a high-fat, low-carbohydrate diet

Answer

A very low-carbohydrate diet in the days prior can impair insulin secretion response, causing falsely elevated post-load glucose values.

OGT - Oral Glucose Tolerance Practice Test