DOT 2024 ACTUAL EXAM QUESTIONS
WITH ALL CORRECT ANSWERS 100%
VERIFIED
Arterial blood gas (ABG) testing should be performed on drivers with a
FEV1 of less than on spirometry testing.
a) 60% predicted.
b) 65% predicted.
c) 70% predicted.
d) 80% predicted - Answer- 65% predicted
ABG testing is required with a FEV1 of less than 65%predicted.
Arterial blood gas (ABG) testing is indicated if pulse oximetry is less than ____.
a) 90%.
b) 92%.
c) 94%.
d) 95%. - Answer- 92%
Which of the following is disqualifying?
a) PaCO2 less than 45 mmHg.
b) PaO2 less than 70 mmHg at altitudes less than ,5000 feet.
c) PaO2 less than 65 mmHg at altitudes above 5,000 feet.
d) PaCO2 greater than 45 mmHg - Answer- PaCO2 greater than 45 mmHg
PaCO2 of more than 45 mm Hg is disqualifying. PaO2 of less than 65 mmHG at
altitudes less than 5000 feet or less than 60 mmHG at altitudes above 5000 feet is
disqualifying.
An apnea / hypopnea index of more than _______ episodes per hour is
diagnostic for sleep apnea.
a) 20.
b) 25.
c) 30.
d) 35 - Answer- 30.
,A apnea / hypopnea index of more than 30 episodes per hour is diagnostic for sleep
apnea.
Guidelines for obstructive sleep apnea:
a) Are regulatory.
b) Require a waiting period of 2 months after initiation of CPAP treatment.
c) Include a 2-month waiting period after surgical treatment.
d) Require disqualification if the driver has restless leg syndrome (RLS)
associated with excessive daytime sleepiness (EDS). - Answer- Require disqualification
if the driver has restless leg syndrome (RLS) associated with excessive daytime
sleepiness (EDS).
The waiting period after CPAP treatment is 1 month and after surgical treatment is 3
months.
Indications for pulse oximetry and /or arterial blood gas (ABG) include:
a) FEV1 less than 70% predicted.
b) FEV1/FVC ratio less than 70%predicted.
c) Restrictive impairment present and FVC less than 70%predicted.
d) If oximetry is less than 92%, the driver must have ABG analysis. - Answer- If oximetry
is less than 92%, the driver must have ABG analysis.
Pulmonary conditions that should result in a disqualification decision include:
a) Any pulmonary process that is likely to interfere with driver ability to
operate a CMV safely, either due to history or clinical diagnosis.
b) Chronic obstructive pulmonary disease(COPD).
c) Asthma.
d) Pulmonary tuberculosis (TB) - Answer- Any pulmonary process that is likely to
interfere with driver ability to operate a CMV safely, either due to history or clinical
diagnosis
Which of following statements is false?
a) A driver with cor pulmonale may be certified after successful treatment.
b) After treatment for cor pulmonale, the Medical Examiner should
request medical documentation related to the treatment and / or
clearance from a pulmonologist or other specialist who treated the
driver.
c) Drivers with pulmonary cor pulmonale who exhibit shortness of breath at
rest, dizziness, or hypotension should be disqualified.
d) A driver with cor pulmonale must have a normal chest X-ray before
certification - Answer- A driver with cor pulmonale must have a normal chest X-ray
before certification.
Which of the following is not true?
a) Asthma that requires frequent hospitalizations or that shows severe
,enough pulmonary dysfunction to put the driver at risk for loss of
awareness or attention may result in a disqualification decision.
b) Chronic obstructive pulmonary disease (COPD), with a cough severe
enough to induce syncope, may result in a disqualification decision.
c) Use of supplemental oxygen is usually not disqualifying.
d) Drivers who smoke are disqualified - Answer- Use of supplemental oxygen is usually
not disqualifying.
The maximum certification interval for a driver diagnosed with asthma is
.
a) 3 months.
b) 6 months.
c) 1 year.
d) 2 years. - Answer- 2 years.
A driver diagnosed with chronic obstructive pulmonary disease (COPD) may
be certified if the driver has:
a) Hypoxemia at rest.
b) FEV1 > 65%.
c) Chronic respiratory failure.
d) History of continuing cough with cough syncope - Answer- FEV1 > 65%
A driver presents for examination with a history of a pneumothorax 3 weeks
ago. The records provided by the driver indicate that the pneumothorax reduced the
driver's forced vital capacity (FVC) to 58% of predicted forced vital capacity. What
should the certification decision be?
a) Do not certify.
b) Certify for 3 months, pending driver follow up with personal
physician and/or specialist.
c) Certify 1 year.
d) Certify 2 years. - Answer- Do not certify
The minimum FVC requirement is 60% predicted for a driverwith a restrictive
impairment
Drivers with sleep apnea should have all of the following except:
a) Multiple sleep latency testing values within the normal range.
b) Resolution of apneas confirmed by sleep study.
c) Annual sleep studies.
d) Certification by a sleep apnea specialist. - Answer- Certification by a sleep apnea
specialist.
Drivers should refrain from driving for after taking
antihistamines (prescription or OTC) or narcotic antitussives.
a) 6 hours.
, b) 8 hours.
c) 12 hours.
d) 24 hours - Answer- 12 hours
The maximum certification for a driver with cystic fibrosis is .
a) 6 months.
b) 1 year.
c) 2 years.
d) Do not certify - Answer- 2 years
Pulse oximetry or arterial blood gas (ABG) testing is indicated when the driver
has an obstructive respiratory condition and results of spirometry testing are .
a) FEV1 < 70% predicted.
b) FEV1/FVC ratio less than 65%.
c) FVC < 80% predicted.
d) FEF 25/75 < 80% predicted. - Answer- FEV1/FVC ratio less than 65%
Arterial blood gas (ABG) testing is indicated if pulse oximetry is less than:
a) 96%
b) 94%
c) 92%
d) 90% - Answer- 92%
A driver takes diphenhydramine (Benadryl), 25 mg, 2 or 3 times per day, to
treat nasal congestion. The Medical Examiner should:
a) Advise the driver to use diphenhydramine no more than twice daily.
b) Advise the driver to consult with a primary care provider to evaluate
chronic congestion and obtain treatment that does not interfere with safe
driving.
c) Prescribe a non-sedating inhaler.
d) Contact DOT to advise of a safety concern - Answer- Advise the driver to consult with
a primary care provider to evaluate chronic congestion and obtain treatment that does
not interfere with safe driving
An apnea / hypopnea index of more than episodes per hour is
diagnostic for sleep apnea.
a) 20.
b) 25.
c) 30.
d) 35. - Answer- 30
An apnea/hypopnea index of more than 30 episodes per houris diagnostic for sleep
apnea.
WITH ALL CORRECT ANSWERS 100%
VERIFIED
Arterial blood gas (ABG) testing should be performed on drivers with a
FEV1 of less than on spirometry testing.
a) 60% predicted.
b) 65% predicted.
c) 70% predicted.
d) 80% predicted - Answer- 65% predicted
ABG testing is required with a FEV1 of less than 65%predicted.
Arterial blood gas (ABG) testing is indicated if pulse oximetry is less than ____.
a) 90%.
b) 92%.
c) 94%.
d) 95%. - Answer- 92%
Which of the following is disqualifying?
a) PaCO2 less than 45 mmHg.
b) PaO2 less than 70 mmHg at altitudes less than ,5000 feet.
c) PaO2 less than 65 mmHg at altitudes above 5,000 feet.
d) PaCO2 greater than 45 mmHg - Answer- PaCO2 greater than 45 mmHg
PaCO2 of more than 45 mm Hg is disqualifying. PaO2 of less than 65 mmHG at
altitudes less than 5000 feet or less than 60 mmHG at altitudes above 5000 feet is
disqualifying.
An apnea / hypopnea index of more than _______ episodes per hour is
diagnostic for sleep apnea.
a) 20.
b) 25.
c) 30.
d) 35 - Answer- 30.
,A apnea / hypopnea index of more than 30 episodes per hour is diagnostic for sleep
apnea.
Guidelines for obstructive sleep apnea:
a) Are regulatory.
b) Require a waiting period of 2 months after initiation of CPAP treatment.
c) Include a 2-month waiting period after surgical treatment.
d) Require disqualification if the driver has restless leg syndrome (RLS)
associated with excessive daytime sleepiness (EDS). - Answer- Require disqualification
if the driver has restless leg syndrome (RLS) associated with excessive daytime
sleepiness (EDS).
The waiting period after CPAP treatment is 1 month and after surgical treatment is 3
months.
Indications for pulse oximetry and /or arterial blood gas (ABG) include:
a) FEV1 less than 70% predicted.
b) FEV1/FVC ratio less than 70%predicted.
c) Restrictive impairment present and FVC less than 70%predicted.
d) If oximetry is less than 92%, the driver must have ABG analysis. - Answer- If oximetry
is less than 92%, the driver must have ABG analysis.
Pulmonary conditions that should result in a disqualification decision include:
a) Any pulmonary process that is likely to interfere with driver ability to
operate a CMV safely, either due to history or clinical diagnosis.
b) Chronic obstructive pulmonary disease(COPD).
c) Asthma.
d) Pulmonary tuberculosis (TB) - Answer- Any pulmonary process that is likely to
interfere with driver ability to operate a CMV safely, either due to history or clinical
diagnosis
Which of following statements is false?
a) A driver with cor pulmonale may be certified after successful treatment.
b) After treatment for cor pulmonale, the Medical Examiner should
request medical documentation related to the treatment and / or
clearance from a pulmonologist or other specialist who treated the
driver.
c) Drivers with pulmonary cor pulmonale who exhibit shortness of breath at
rest, dizziness, or hypotension should be disqualified.
d) A driver with cor pulmonale must have a normal chest X-ray before
certification - Answer- A driver with cor pulmonale must have a normal chest X-ray
before certification.
Which of the following is not true?
a) Asthma that requires frequent hospitalizations or that shows severe
,enough pulmonary dysfunction to put the driver at risk for loss of
awareness or attention may result in a disqualification decision.
b) Chronic obstructive pulmonary disease (COPD), with a cough severe
enough to induce syncope, may result in a disqualification decision.
c) Use of supplemental oxygen is usually not disqualifying.
d) Drivers who smoke are disqualified - Answer- Use of supplemental oxygen is usually
not disqualifying.
The maximum certification interval for a driver diagnosed with asthma is
.
a) 3 months.
b) 6 months.
c) 1 year.
d) 2 years. - Answer- 2 years.
A driver diagnosed with chronic obstructive pulmonary disease (COPD) may
be certified if the driver has:
a) Hypoxemia at rest.
b) FEV1 > 65%.
c) Chronic respiratory failure.
d) History of continuing cough with cough syncope - Answer- FEV1 > 65%
A driver presents for examination with a history of a pneumothorax 3 weeks
ago. The records provided by the driver indicate that the pneumothorax reduced the
driver's forced vital capacity (FVC) to 58% of predicted forced vital capacity. What
should the certification decision be?
a) Do not certify.
b) Certify for 3 months, pending driver follow up with personal
physician and/or specialist.
c) Certify 1 year.
d) Certify 2 years. - Answer- Do not certify
The minimum FVC requirement is 60% predicted for a driverwith a restrictive
impairment
Drivers with sleep apnea should have all of the following except:
a) Multiple sleep latency testing values within the normal range.
b) Resolution of apneas confirmed by sleep study.
c) Annual sleep studies.
d) Certification by a sleep apnea specialist. - Answer- Certification by a sleep apnea
specialist.
Drivers should refrain from driving for after taking
antihistamines (prescription or OTC) or narcotic antitussives.
a) 6 hours.
, b) 8 hours.
c) 12 hours.
d) 24 hours - Answer- 12 hours
The maximum certification for a driver with cystic fibrosis is .
a) 6 months.
b) 1 year.
c) 2 years.
d) Do not certify - Answer- 2 years
Pulse oximetry or arterial blood gas (ABG) testing is indicated when the driver
has an obstructive respiratory condition and results of spirometry testing are .
a) FEV1 < 70% predicted.
b) FEV1/FVC ratio less than 65%.
c) FVC < 80% predicted.
d) FEF 25/75 < 80% predicted. - Answer- FEV1/FVC ratio less than 65%
Arterial blood gas (ABG) testing is indicated if pulse oximetry is less than:
a) 96%
b) 94%
c) 92%
d) 90% - Answer- 92%
A driver takes diphenhydramine (Benadryl), 25 mg, 2 or 3 times per day, to
treat nasal congestion. The Medical Examiner should:
a) Advise the driver to use diphenhydramine no more than twice daily.
b) Advise the driver to consult with a primary care provider to evaluate
chronic congestion and obtain treatment that does not interfere with safe
driving.
c) Prescribe a non-sedating inhaler.
d) Contact DOT to advise of a safety concern - Answer- Advise the driver to consult with
a primary care provider to evaluate chronic congestion and obtain treatment that does
not interfere with safe driving
An apnea / hypopnea index of more than episodes per hour is
diagnostic for sleep apnea.
a) 20.
b) 25.
c) 30.
d) 35. - Answer- 30
An apnea/hypopnea index of more than 30 episodes per houris diagnostic for sleep
apnea.
