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DOT ExaminationAka: Department of Transportation Examination
- Absolute disqualifying conditions for certification
- Diabetes Mellitus requiring Insulin Therapy
- Other Diabetes Mellitus management not excluded
- Diet control
- Oral Hypoglycemic control
- Other management must result in good glucose control
- Certify for one year at a time to ensure monitoring
- Seizure disorder
- Does not include childhood Febrile Seizures
- No isolated Seizure in last 5 years
- No multiple Seizures in last 10 years
- No medications
- Refer questionable cases to Neurology
- Significant Hearing Loss
- Hearing Aid may be worn
- Screening with whispered voice
- Negative if heard at 5 feet in at least one ear
- Audiogram Evaluation (indicated for positive screen)
- Average Hearing Loss at 500, 1000, and 2000 Hz
- Calculate for better ear
- Add values together and divide by three
- Qualification requires 40 decibel average or less
- Significant Vision Loss
- Vision correction may be used
- Visual Acuity must be at least 20/40 in each eye
- Field of vision must be 70 degrees in each eye
- Color vision must recognize red, green and amber
- Special Circumstances with Possible Disqualification
- Extremity loss or Impairment
- Examples
- Amputation
- Fused or immobile knee or hip
- Partial limb paralysis
- Unqualified unless waiver received
- Waiver obtained by Director of Motor Carriers
- Cardiovascular disease with risk of Syncope or CHF
- Asymptomatic and isolated arrhythmia may be ok
- Cardiology evaluation recommended
- Myocardial Infarction or Angina
- Cardiac arrhythmia
- Tachycardia
- Bradycardia
- Consider additional testing
- Holter Monitoring
- Exercise Stress Test
- Significant Respiratory Disease
- Spirometry indicated for significant symptoms
- Spirometry findings requiring oxygenation assessment
- Forced Expiratory Volume (FEV1) <65% of predicted
- Forced Vital Capacity (FVC) <60% of predicted
- FEV1 to FVC ration <65% of predicted
- Oxygenation assessment
- Arterial Blood Gas (ABG) indicated for O2 Sat <92%
- Disqualifying Arterial Blood Gas values
- PaO2 <65 mmHg
- PaCO2 >45 mmHg
- Uncontrolled Hypertension
- Initial Blood Pressure (may take several readings)
- Disqualifying Blood Pressure: 181/105 or higher
- Temporary Certification (3 months): 161/91 or over
- Full Two year certification: 160/90 or lower
- Treated Hypertension (if disqualified above)
- Consider sudden collapse risk if end organ damage
- Certify for only one year at a time
- Disorders that alter driving ability or judgment
- Disqualification per physician assessment
- Examples
- Musculoskeletal, neurologic or vascular disease
- Psychiatric illness
- Judgment or reality perception affected
- Reaction time affected
- Psychotropic medications altering consciousness
- Consciousness altering substance use
- Schedule I Drug (e.g. Amphetamine, Narcotic)
- Current Alcoholism
- Consider Substance Abuse counselor assessment
- Resources
- Federal Highway Administration
- http://www.fhwa.dot.gov
- DOT Regulations
- http://www.acoem.com/dot/dotregs.html
- References
- Pommerenke (1998) Am Fam Physician 58(2):415
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