DOT EXAM
,1. What minimum PaO2 level is necessary if the driver has an ABG due to a
chronic respiratory disorder?
a.70mmHg b.55mmHg c.60mmHg
d.65mmHg: Correct answer is "D". To be qualified, the driver should meet
a minimum arterial blood gas (PaO2)greater than 65.
2. A driver first perceives a whispered voice at 5 feet in his right ear and 4 feet
in his left ear. All other aspects of his physical examination are unremarkable.
The examiner should:
a.Permanently disqualify the driver because he "failed" the whispered voice
test.
b.Certify the driver for 2 years. certify the driver for 1 year.
d.Require an audiometric test to determine the extent of hearing loss in his
left ear.: Correct answer is "B". The driver is qualified to drive without
restriction as long as he is able to perceive a whispered voice at 5 feet in
1 ear.
3. A driver reports for an examination 6 weeks after suffering a mild heart
attack and presents a note from his cardiologist stating that he is able to
return to work immediately without restriction. Included within the note, the
cardiologist provides recent testing information showing that the driver had
an ETT that showed he was able to reach 12 METS during the test. His
,echocardiogram showed an ejection fraction of 65%. The examination of the
driver is unremark- able. The examiner should:
a. Temporarily disqualify the driver. b. Qualify the driver for 1 year.
c. Qualify the driver for 2 years.
d. Consult with the cardiologist to determine if the driver suffers from angina.-
: Correct answer is "A". The driver has not completed the required 2-
monthwaiting period, but all other requirements for medical clearance
and required testing have been met. The driver would be certified for 1
year at the completion of the waiting period. The date of the certification
would be from the date of the original examination.
4. A driver provides an audiometric test documenting the following:
1. 500 Hz: 2. 1000 HZ: 3. 2000 HZ: 4. 4000 Hz:
35 Right ear; 40 Left ear 40 Right ear; 45 Left ear 40 Right ear; 45 Left ear 50
Right ear; 50 Left ear
5. The medical examiner should:
a. Disqualify the driver because he does not meet minimum hearing require-
mentsto drive.
b. Certify the driver for 2years. c. Certify the driver for 1 year.
d. Require the driver to obtain a hearing exemption.:
, Correct answer is "B". The examiner would average the results from 500
Hz, 1000 Hz and 2000 Hz. This average is 38.33 in the Right and 43.33 in
the Left ear. A driver must have an average hearing loss of less than or
equal to 40 in the better ear. This does not have to be met in both ears.
5. During the examination of a commercial driver, the examiner notices that
the driver's peripheral vision is 70 degrees to the left and 80 degrees to the
right. The examiner should:
a. Qualify the driver for 2 years.
b. Require the driver to obtain a vision exemption because of the limitation in
the driver's
left peripheral field.
c. Disqualify the driver.
d. Have the driver consult with an Ophthalmologist to determine if the driver's
peripheral vision meets minimum standards.:
Correct answer is "A". A driver must exhibit a minimum peripheral
vision of 70 degrees bilaterally.
6. During examination, the medical examiner notices that the driver is distant,
lacks eye contact and shows absolutely no emotional response during the
exam. The examiner's best response should be: