NRCME (DOT) Medical Examiner Certification Newest Exam Guide
2026 – Comprehensive Questions Study Resource with Answers
and Detailed Rationales | For Commercial Driver Fitness,
Cardiovascular, Neurological, Vision, Hearing, Diabetes, Sleep
Apnea, and Substance Use Standards | 2 Versions Format for
Effective Mastery and Exam Readiness
Introduction
This NRCME (DOT) Medical Examiner Certification Exam Practice Guide contains
multiple-choice questions with answers and detailed rationales, designed to help medical
professionals assess commercial driver fitness according to FMCSA standards.
The guide covers:
Cardiovascular conditions – Hypertension, MI, angina, stroke
Neurological disorders – Seizures, epilepsy, TBI, migraines
Endocrine/metabolic issues – Diabetes, obesity, thyroid disorders
Sleep disorders – Obstructive sleep apnea and CPAP compliance
Vision & hearing standards – Distance vision, color vision, monocular vision, hearing
tests
Substance use & medications – Sedating drugs, prohibited substances
Functional assessments – Mobility and prosthetic evaluations
Question 1
A 52-year-old truck driver has a blood pressure reading of 146/94 mmHg during a
DOT exam. What is the correct certification action?
A. Certify for 2 years
B. Certify for 1 year with follow-up
C. Disqualify until BP is controlled
D. Immediate disqualification
Answer: B
Stage 2 hypertension (140–159/90–99) allows certification for up to 1 year if under
treatment and monitored.
,Question 2
Which of the following conditions automatically disqualifies a driver under NRCME
standards?
A. Controlled Type 2 diabetes
B. Insulin-treated diabetes mellitus
C. Mild sleep apnea
D. Corrected vision of 20/40
Answer: B
Insulin-treated diabetes is a disqualifying condition unless specifically approved
under FMCSA exemptions.
Question 3
During a DOT exam, a driver reports occasional chest pain on exertion. What is the
next step?
A. Certify immediately
B. Refer for cardiology evaluation
C. Disqualify indefinitely
D. Issue a temporary certificate for 3 months
Answer: B
Any driver with cardiovascular symptoms must have further evaluation before
certification.
Question 4
What is the minimum distant visual acuity requirement for a CDL driver, with or
without correction?
,A. 20/50 in each eye
B. 20/40 in each eye
C. 20/40 in at least one eye
D. 20/30 in both eyes
Answer: B
The FMCSA standard requires at least 20/40 in each eye, corrected or uncorrected.
Question 5
Which of the following medications would most likely disqualify a driver?
A. Atenolol for hypertension
B. Metformin for diabetes
C. Sedating antihistamines
D. Topical antibiotic eye drops
Answer: C
Sedating medications can impair driving ability and are considered disqualifying.
Question 6
A driver has a BMI of 38. What is the examiner’s responsibility regarding
certification?
A. Immediate disqualification
B. Evaluate for obstructive sleep apnea risk
C. Certify without restrictions
D. Refer for nutritional counseling only
Answer: B
High BMI (≥35) increases risk of sleep apnea; evaluation or testing is recommended
before certification.
, Question 7
What is the maximum certification period for a driver with well-controlled
hypertension and no end-organ damage?
A. 3 months
B. 6 months
C. 1 year
D. 2 years
Answer: D
Well-controlled hypertension without complications allows certification for up to 2
years.
Question 8
Which hearing standard must a driver meet for DOT certification?
A. Ability to hear a forced whisper at 5 feet
B. Pure tone audiometry average ≤ 40 dB in each ear
C. Must have perfect hearing in both ears
D. Ability to hear conversational speech at 10 feet
Answer: A
The FMCSA requires hearing the forced whisper at 5 feet, with or without hearing
aids.
Question 9
Which neurological condition typically disqualifies a driver?
A. History of migraine headaches
B. Controlled epilepsy with medication
C. History of seizure within the last 10 years
D. History of traumatic brain injury without residual deficits
2026 – Comprehensive Questions Study Resource with Answers
and Detailed Rationales | For Commercial Driver Fitness,
Cardiovascular, Neurological, Vision, Hearing, Diabetes, Sleep
Apnea, and Substance Use Standards | 2 Versions Format for
Effective Mastery and Exam Readiness
Introduction
This NRCME (DOT) Medical Examiner Certification Exam Practice Guide contains
multiple-choice questions with answers and detailed rationales, designed to help medical
professionals assess commercial driver fitness according to FMCSA standards.
The guide covers:
Cardiovascular conditions – Hypertension, MI, angina, stroke
Neurological disorders – Seizures, epilepsy, TBI, migraines
Endocrine/metabolic issues – Diabetes, obesity, thyroid disorders
Sleep disorders – Obstructive sleep apnea and CPAP compliance
Vision & hearing standards – Distance vision, color vision, monocular vision, hearing
tests
Substance use & medications – Sedating drugs, prohibited substances
Functional assessments – Mobility and prosthetic evaluations
Question 1
A 52-year-old truck driver has a blood pressure reading of 146/94 mmHg during a
DOT exam. What is the correct certification action?
A. Certify for 2 years
B. Certify for 1 year with follow-up
C. Disqualify until BP is controlled
D. Immediate disqualification
Answer: B
Stage 2 hypertension (140–159/90–99) allows certification for up to 1 year if under
treatment and monitored.
,Question 2
Which of the following conditions automatically disqualifies a driver under NRCME
standards?
A. Controlled Type 2 diabetes
B. Insulin-treated diabetes mellitus
C. Mild sleep apnea
D. Corrected vision of 20/40
Answer: B
Insulin-treated diabetes is a disqualifying condition unless specifically approved
under FMCSA exemptions.
Question 3
During a DOT exam, a driver reports occasional chest pain on exertion. What is the
next step?
A. Certify immediately
B. Refer for cardiology evaluation
C. Disqualify indefinitely
D. Issue a temporary certificate for 3 months
Answer: B
Any driver with cardiovascular symptoms must have further evaluation before
certification.
Question 4
What is the minimum distant visual acuity requirement for a CDL driver, with or
without correction?
,A. 20/50 in each eye
B. 20/40 in each eye
C. 20/40 in at least one eye
D. 20/30 in both eyes
Answer: B
The FMCSA standard requires at least 20/40 in each eye, corrected or uncorrected.
Question 5
Which of the following medications would most likely disqualify a driver?
A. Atenolol for hypertension
B. Metformin for diabetes
C. Sedating antihistamines
D. Topical antibiotic eye drops
Answer: C
Sedating medications can impair driving ability and are considered disqualifying.
Question 6
A driver has a BMI of 38. What is the examiner’s responsibility regarding
certification?
A. Immediate disqualification
B. Evaluate for obstructive sleep apnea risk
C. Certify without restrictions
D. Refer for nutritional counseling only
Answer: B
High BMI (≥35) increases risk of sleep apnea; evaluation or testing is recommended
before certification.
, Question 7
What is the maximum certification period for a driver with well-controlled
hypertension and no end-organ damage?
A. 3 months
B. 6 months
C. 1 year
D. 2 years
Answer: D
Well-controlled hypertension without complications allows certification for up to 2
years.
Question 8
Which hearing standard must a driver meet for DOT certification?
A. Ability to hear a forced whisper at 5 feet
B. Pure tone audiometry average ≤ 40 dB in each ear
C. Must have perfect hearing in both ears
D. Ability to hear conversational speech at 10 feet
Answer: A
The FMCSA requires hearing the forced whisper at 5 feet, with or without hearing
aids.
Question 9
Which neurological condition typically disqualifies a driver?
A. History of migraine headaches
B. Controlled epilepsy with medication
C. History of seizure within the last 10 years
D. History of traumatic brain injury without residual deficits
