Do’s
- Get a good night’s sleep
- Ensures the best resting pulse
- Stay hydrated
- Drink a glass of water 1 hour before the exam
- Makes for an easier blood draw
- Document medications
- Prescription and over-the-counter medications including vitamins, herbs and supplements
- Notify of any past blood draw issues
- So the examiner can be prepared and bring a smaller needle if necessary
Don’ts:
- Consume salt/high-cholesterol (24 hours prior)
- Do any strenuous exercise (12 hours prior)
- Working out excessively may release protein into the urine and elevate liver function tests
- Drink alcoholic beverages (12 or more hours prior)
- Alcohol may cause dehydration and liver function test elevation
- Use nicotine or caffeine (1 hour prior at least)
- Both are stimulants and may elevate heart rate.
- Black coffee is is acceptable up to 1 hour before the exam
