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DOT Certification Exam 2025/2026: 100 Practice Questions & Correct Answers | FMCSA Commercial Driver Medical Standards

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Prepare for the DOT Certification Exam with this comprehensive collection of 100 actual exam questions and verified answers for 2025/2026. This guide covers essential FMCSA medical standards and guidelines, including vision and hearing requirements, cardiovascular and pulmonary conditions, seizure disorders, hypertension, diabetes, and more. Ideal for medical examiners, healthcare professionals, and commercial driver applicants, this resource ensures you understand the key criteria for certifying or disqualifying CMV drivers. Boost your confidence and achieve an A+ grade with targeted practice based on the latest federal regulations (49 CFR 391.41 and 391.43).

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Uploaded on
November 1, 2025
Number of pages
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Written in
2025/2026
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DOT CERTIFICATION EXAM / DOT CERTIFICATION EXAM
PREPARATION/DOT CERTIFICATION EXAMPRACTICE ACTUAL EXAM
100 QUESTIONS AND CORRECT ANSWERS 2025/2026 | A+GRADE

Waiting period for initial unprovoked seizure? - ......ANSWER........5 years

Waiting period for multiple seizures (no Dx of epilepsy)? - ......ANSWER........10 years

What are the differences between the medical standards and the medical guidelines?
- ......ANSWER........Standards/regulations are law. Guidelines are best practices.

What are the possible outcomes of the driver physical examination?
- ......ANSWER........Certification or disqualification

What eye conditions must the medical examiner ask the driver about and if indicated
request specialist evaluation? - ......ANSWER........Retinopathy, cataracts, aphakia
(absence of the lens), glaucoma, and macular degeneration

What happens to PaO2 at high altitudes? - ......ANSWER........It decreases. Adjust for
drivers traveling to and from varying elevations.

What is the mission of the FMCSA? - ......ANSWER........FMCSA is focused on reducing
crashes, injuries and fatalities involving large trucks and buses.

What is the purpose of the Interstate CMV driver physical exam? - ......ANSWER........To
detect the presence of physical, mental, or organic conditions of such character and
extent as to affect the driver's ability to operate a CMV safely. This examination is for public
safety determination and is considered by FMCSA to be a "medical fitness for duty"
examination.

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What objective tests and measurements are required as part of the driver physical
examination? - ......ANSWER........- Height and weight

• Vision
• Hearing
• Blood pressure and pulse
• Urine dipstick for specific gravity, protein, blood, and glucose

What tests must be order if minimum FEV1 or FVC requirements are not met?
- ......ANSWER........Oximetry or ABG

What three tests are used for initial evaluation of pulmonary function?
- ......ANSWER........1. FEV1 2. FVC 3. FEV/FVC

When is a follow-up ETT required following PCI? - ......ANSWER........3-6 months

Where is Federal Vision Examination Program cited? - ......ANSWER........49 DFR
391.41(b)(10)

Which pulmonary conditions are disqualifying? - ......ANSWER........1. Bronchiectasis w/
hemoptysis 2. Chronic TB 3. COPD w/ severe cough 4. Asthma w/ frequent hospitalizations

Which two groups require "simple pulmonary function testing"? - ......ANSWER........1.
Smokers >35 years old 2. Any Hx of SOB, CP or wheezing

Who and what does FMCSA regulate? - ......ANSWER........FMCSA regulates interstate
commercial operation, including driver, vehicle, motor carrier, and the transport of
hazardous materials.

Who reviews a positive drug screen? - ......ANSWER........MRO (Medical Review Officer)

A 62 y/o woman is seen for a recertification. She is a smoker and has osteoarthritis, treated
with Mobic, 15mg/day. On exam she has cervical ROM limited to 15o. She has a note from
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