How to pass a DOT physical with high blood pressure
High blood pressure is the most common reason drivers leave the exam with a 3-month or 1-year card instead of a 2-year one. The thresholds are fixed, but the result is not — there is a lot you can do before you walk in.
DOT blood pressure guidelines: what each reading gets you
These are the FMCSA advisory criteria medical examiners use. Knowing them ahead of time removes the surprise.
Normal · Below 140 / 90
Certified up to 24 monthsNo restrictions. This is the reading that gets you the full medical card.
Stage 1 · 140–159 / 90–99
One-time 1-year certificateYou pass, but you must be below 140/90 at your next recertification to keep a 1-year card.
Stage 2 · 160–179 / 100–109
One-time 3-month certificateYou pass for now. You have 3 months to get below 140/90, then you can move to a 1-year card.
Stage 3 · 180 / 110 or higher
Disqualified until controlledThis is a fail. Once you are stable below 140/90, you can be certified for 6 months at a time.
Source: FMCSA Medical Examiner Handbook advisory criteria under 49 CFR 391.41(b)(6).
How to lower blood pressure before the exam
These are the levers that actually move the number for drivers. None require a gym or a special diet.
Cut sodium at truck stops
One truck-stop hot meal or fast-food combo can hold 1,500–3,000 mg of sodium. Swap one salty meal a day for a lower-sodium option and the number starts moving within a week.
Move 10 minutes a day
You do not need a gym. Ten minutes of brisk movement next to the rig most days is enough to lower systolic pressure over time. Consistency beats intensity.
Take medication as prescribed
Being on blood pressure medication does not disqualify you. Stopping or skipping it before the exam is what causes bad readings.
Control exam-day nerves
Skip caffeine and nicotine, use the bathroom, sit quietly for five minutes, and ask for a re-check if the first reading is high. Examiners routinely allow it.
Track your own numbers
A $30 cuff and a week of readings tells you whether you have a real problem or white-coat nerves. Bring the log to the exam.
What to do on exam day
Arrive early so you are not rushing. Use the restroom, sit quietly, and let yourself settle before the examiner calls you in.
- No caffeine or nicotine for at least an hour beforehand.
- Keep both feet flat on the floor and your arm supported at heart level.
- Ask for a re-check if the first reading is high — most examiners allow it.
- Bring your medication list, a home BP log, and any specialist letters.
A single nervous spike should not decide your card. The examiner has discretion, and a calm re-check often comes down 10–20 points.
Blood pressure & DOT physical FAQ
Can you pass a DOT physical with high blood pressure?+
Yes, if your reading is below 180/110. Readings from 140/90 up to 179/109 do not fail you outright — they shorten the certification period. A reading of 180/110 or higher is disqualifying until it is brought under control.
What blood pressure will fail a DOT physical?+
180/110 or higher. Between 140/90 and 179/109, you pass with a shorter card: 1 year for stage 1, 3 months for stage 2.
How can I lower my blood pressure quickly before a DOT physical?+
The honest answer is to start a few weeks out. Cut sodium, add 10 minutes of daily movement, sleep consistently, and take prescribed medication exactly as directed. On exam day, avoid caffeine and nicotine, stay hydrated, and ask for a re-check if the first reading is high.
Does blood pressure medication disqualify you from a DOT physical?+
No. Treated, well-tolerated hypertension is acceptable. Bring a list of your medications and dosages, and never stop taking them before the exam.
How long before the exam should I start lowering my blood pressure?+
Start as soon as you can. Lifestyle changes can move the number in 2–4 weeks. If you are close to a threshold, even a few days of low sodium, good sleep, and no caffeine can help.
Keep the number down between physicals
Cab-Fit builds 10-minute workouts you can do next to your rig and shows lower-sodium options at nearby truck stops, with USDA-verified macros. Small habits, moved daily, keep your BP out of the exam room conversation.
General information, not medical advice. Talk to your doctor or certified medical examiner about your own readings and medications.