AANP Family Nurse Practitioner (FNP) Certification ExamEvaluationMedium
A 48-year-old female with Type 2 Diabetes Mellitus presents for a follow-up. Her current A1C is 8.2%. She is on metformin 1000 mg BID. She reports consistent medication adherence and dietary modifications. Her renal function is stable. What is the most appropriate next step in her treatment plan?
- AInitiate insulin therapy.
- BRefer to a diabetes educator for dietary review.
- CAdd a sulfonylurea to her current regimen.
- DIncrease metformin to 1500 mg BID.
Show answer & explanationAnswer & explanation
Correct answer: C. Add a sulfonylurea to her current regimen.
Given the patient's A1C remains elevated despite maximal metformin dose and reported adherence, the next step is to add a second oral agent. Sulfonylureas are a common and effective second-line therapy.
Why the other options are wrong
- A. Insulin therapy is usually considered after failure of two or more oral agents, or if A1C is significantly higher (e.g., >9-10%) at presentation.
- B. While a diabetes educator referral is always beneficial, it does not address the immediate need for pharmacologic intensification to lower the A1C.
- D. Metformin is typically dosed up to 2000 mg daily (1000 mg BID) for maximal effect; increasing it further is unlikely to be beneficial and may increase side effects.
Type 2 Diabetes Step-Up Therapy
When A1C targets are not met with metformin monotherapy, a second agent from a different class should be added to the treatment regimen.
- Metformin is first-line therapy unless contraindicated.
- If A1C remains above target after 3 months, add a second agent.
- Common second agents include sulfonylureas, DPP-4 inhibitors, SGLT2 inhibitors, GLP-1 receptor agonists, and thiazolidinediones.
Memory trick: Metformin first, then mix it up, if A1C's still high, bring in the big guns.