NRCME Urinalysis and Renal Disorders

Question 1

According to FMCSA regulations, which of the following is routinely checked during the DOT urinalysis as part of the commercial driver physical examination?

Accepted Answer

Sugar, albumin, and specific gravity

Answer

Creatinine clearance only

Answer

Complete metabolic panel

Answer

Urine culture and sensitivity

Question 2

A CMV driver's urinalysis shows 2+ glucose. What is the most appropriate next step for the medical examiner?

Accepted Answer

Investigate further for diabetes mellitus before making a certification decision

Answer

Immediately disqualify the driver

Answer

Certify the driver without restriction

Answer

Refer the driver for a urine culture

Question 3

What is the clinical significance of finding persistent proteinuria (albumin 2+ or greater) on a DOT urinalysis in a commercial driver?

Accepted Answer

It may signal underlying renal disease requiring further evaluation

Answer

It indicates the driver consumed excess protein before the exam

Answer

It is a normal finding in drivers over age 50

Answer

It automatically qualifies the driver for a 2-year certificate

Question 4

Which specific gravity range is considered within normal limits during a DOT physical urinalysis?

Accepted Answer

1.010–1.030

Answer

1.001–1.005

Answer

1.035–1.045

Answer

1.050–1.060

Question 5

A commercial driver undergoing a DOT physical has a urinalysis positive for blood (hematuria). What should the medical examiner do?

Accepted Answer

Investigate the cause of hematuria before making a certification decision

Answer

Certify the driver for 1 year and schedule a follow-up

Answer

Disqualify the driver permanently

Answer

Ignore the finding if the driver reports no symptoms

Question 6

A CMV driver is found to have ketonuria on urinalysis during the DOT physical. In which clinical scenario is this finding most medically significant?

Accepted Answer

Drivers with uncontrolled or undiagnosed Type 1 diabetes

Answer

Drivers who ate a high-protein meal that morning

Answer

Drivers who exercised vigorously the previous day

Answer

Drivers taking calcium supplements

Question 7

Which statement best describes the purpose of the urinalysis in the FMCSA commercial driver medical examination?

Accepted Answer

It screens for medical conditions that may affect driving safety

Answer

It serves as a federally mandated drug screening test

Answer

It detects alcohol impairment at the time of the exam

Answer

It replaces the need for blood pressure measurement