Following these tips can help obtain accurate exam results
• Fast for four to eight hours prior to the exam and try to schedule
the exam for first thing in the morning, prior to eating
• Limit salt and high-cholesterol foods 24 hours prior to the exam
• Limit caffeine and nicotine 24 hours prior to the exam (can
increase blood pressure, cholesterol)
• Drink a glass of water one hour prior to the exam
• Get a good night of sleep prior to the exam
• Refrain from drinking alcoholic beverages for at least 24 hours
prior to the exam (can increase fat in blood and liver functions)
• Smokers should not smoke 30 minutes prior to exam (tends to
constrict artery walls and elevate blood pressure)
• Avoid the use of nasal decongestants if possible for 24 hours
prior to the exam (can increase blood pressure readings)
Helpful reminders
• Be prepared with a photo ID at the time of the exam
• Provide names and dosages of current medications
• Provide any history of problems associated with providing a
blood sample
• Women should mention to the examiner if menstruating at the
time of exam (can cause blood in the urine specimen)
• Have available names, addresses and phone numbers of any
doctors or clinics visited in the last five years
• Tell the examiner if exercise is a regular activity
• Tell the examiner if vitamins or aspirin are taken on a daily basis
If you have experienced one of the following health conditions, follow these additional guidelines:
Hypertension
• Avoid stimulants (caffeine, alcohol, cigarettes)
• Schedule a morning exam
• Have the examiner take blood pressure after you have had a chance to relax –
three attempts at 10 minute intervals
• Take usual medications
Diabetes
• Schedule the exam for 2½ hours after a meal (no sweets or sugars after the
meal), but if blood is being drawn, fast for eight hours prior to the exam
• Empty bladder right after meal
• Drink one to two glasses of water before the exam
Urinary Specimen Problems (albumin, red blood cells, sugar, etc.)
• Empty bladder right after meal
• Drink two to three glasses of water before the exam
• Avoid sweets or foods with sugar content before the exam
• Avoid strenuous exercise, such as running, for 24 hours prior to the exam
Coronary, EKG Problems
• Avoid stimulants (caffeine, alcohol, cigarettes)
