OGT Post-Test Care and Clinical Follow-Up 1 — Questions and Answers
Question 1: After completing a 2-hour OGTT, what should the patient be advised to eat immediately?
- Only water and clear liquids
- A balanced meal to restore normal glucose levels (Correct answer)
- A high-sugar snack to replenish glucose
- Nothing for 2 additional hours
Correct answer: A balanced meal to restore normal glucose levels
After fasting and glucose loading, patients should eat a balanced meal to restore their glycemic equilibrium and prevent symptomatic hypoglycemia.
Question 2: Which symptom during the OGTT should prompt the clinician to draw blood immediately and evaluate for hypoglycemia?
- Mild thirst
- Diaphoresis, trembling, and confusion (Correct answer)
- Slight headache
- Nausea after glucose ingestion
Correct answer: Diaphoresis, trembling, and confusion
Diaphoresis, trembling, and confusion are classic signs of hypoglycemia; blood should be drawn immediately to measure glucose and address the episode.
Question 3: A patient diagnosed with prediabetes on OGTT should be referred to which type of program as primary intervention?
- Bariatric surgery consultation
- Insulin injection training
- Diabetes Prevention Program (DPP) or equivalent lifestyle intervention (Correct answer)
- Monthly OGTT monitoring
Correct answer: Diabetes Prevention Program (DPP) or equivalent lifestyle intervention
The CDC-recognized Diabetes Prevention Program (DPP) reduces type 2 diabetes risk by approximately 58% in prediabetic individuals through structured lifestyle changes.
Question 4: How often should a patient with confirmed prediabetes have their glucose tolerance reassessed?
- Every 6 months
- Every 1–2 years (Correct answer)
- Every 3 years
- Only if symptomatic
Correct answer: Every 1–2 years
ADA guidelines recommend annual to biennial glucose testing for individuals with prediabetes due to the significant risk of progression to type 2 diabetes.
Question 5: A newly diagnosed type 2 diabetes patient after OGTT should have which laboratory test ordered to assess average glucose over the prior 2–3 months?
- Fasting insulin level
- Hemoglobin A1c (HbA1c) (Correct answer)
- C-peptide
- Urine microalbumin
Correct answer: Hemoglobin A1c (HbA1c)
HbA1c reflects average plasma glucose over the preceding 2–3 months and is essential for establishing a baseline and monitoring response to treatment.
Question 6: What lifestyle modification has the strongest evidence for reducing the risk of progression from prediabetes to type 2 diabetes?
- Smoking cessation
- A minimum of 150 minutes per week of moderate-intensity exercise combined with modest weight loss (Correct answer)
- Daily aspirin therapy
- High-protein, zero-carb diet
Correct answer: A minimum of 150 minutes per week of moderate-intensity exercise combined with modest weight loss
The DPP trial demonstrated that 150 minutes/week of moderate activity plus 5–7% body weight loss reduces diabetes risk by 58%, outperforming metformin in the trial.
OGT Post-Test Care and Clinical Follow-Up 1
After completing a 2-hour OGTT, what should the patient be advised to eat immediately?