NRCME Endocrine and Metabolic Conditions 4

Question 1

A CMV driver with type 2 diabetes uses insulin glargine (basal insulin only) with no history of hypoglycemia and stable A1c of 7.1%. Under FMCSA standards, what is the most appropriate certification action?

Accepted Answer

Require exemption through the Federal Diabetes Exemption Program

Answer

Commercial drivers using any insulin require a Federal Diabetes Exemption to operate CMVs in interstate commerce under FMCSA regulations.

Question 2

Which metabolic condition is most commonly associated with obstructive sleep apnea in commercial drivers, creating a dual disqualifying concern for the NRCME examiner?

Accepted Answer

Obesity with metabolic syndrome

Answer

Obesity with metabolic syndrome is strongly associated with OSA, and both conditions independently affect driver safety and certification.

Question 3

A driver reports taking levothyroxine for hypothyroidism. TSH is 2.1 mIU/L and the driver is asymptomatic. What is the correct NRCME certification decision?

Accepted Answer

Certify; well-controlled hypothyroidism on replacement therapy is not disqualifying

Answer

Well-controlled hypothyroidism with normal TSH on stable replacement therapy does not impair driving and is not a disqualifying condition.

Question 4

During a DOT physical, a driver's random blood glucose is 310 mg/dL. The driver denies any diabetes diagnosis. What is the examiner's best next step?

Accepted Answer

Defer certification and refer the driver for evaluation and diagnosis

Answer

A markedly elevated random glucose warrants deferral and referral for proper diagnosis before certification can be granted.

Question 5

A driver with Cushing's syndrome has been treated with surgical resection and is now in remission for 18 months with normal cortisol levels. Which concern is MOST relevant for the NRCME examiner assessing current fitness for duty?

Accepted Answer

Residual hypertension and diabetes that may have developed during active disease

Answer

Cushing's syndrome can cause lasting hypertension and diabetes even after remission, and these must be evaluated for their impact on driver safety.

NRCME - National Registry of Certified Medical Examiners Practice Test

NRCME - National Registry of Certified Medical Examiners Practice Test

NRCME Endocrine and Metabolic Conditions 4