caffeine effects on blood pressure?

Question

I was wondering if drinking caffeinated befferages on the day of a blood pressure test will have any affect. It's not a serious test, but I've heard of caffeine raising blood pressure over time and I'm not sure if drinking it will have any immediate affect on the results. Any help?

So if I drink coffee in the morning that caffeine will show up on a test four hours later?

Answer 1

If you have been hypertensive it may cause SIGNIFICANT increase for at least 3 hours after the intake, but if your blood pressure has been pretty normal all along, then there can be an INSIGNIFICANT increase.

A certain research found that caffeine causes STIFFNESS of arteries of those who had been hypertensive. Such effect could increase the blood pressure to more or less 10 in both the systolic and diastolic. Rise in blood pressure from such effect could last for 3 hours.

The extent of the increasing effect could be variable as affected by some factors. Every individuals reaction to caffeine intake varies. Habitual drinkers who takes large amounts of caffeinated drinks may not respond in the same way as of those who are not drink caffeinated beverages. Intake of other things like sugar, cream, and other foods taken along with caffeinated drinks may also "DILUTE" the effects of caffeine.

Now, you may not really feel that your blood pressure is rising after drinking caffeinated drinks. It may or may not yield to a considerable increase but if it really does, feel free to discuss that with your doctor.

Answer 2

Methylxanthine alkaloids, such as Caffeine, act through multiple mechanisms on many organs.
It does not act on the blood vessels themselves, but it does act on the heart by mimicking epinpehrine and stimulating the beta receptors. It has positive inotropic (increased contractility) and chronotropic (increased heart rate), which will increase the blood pressure.
The half life, time need for the body to eliminate 1/2 of a particular compound from the body, of caffeine is about 3-4 hours,
Yes if you go to the doctor in the morning and drink coffee or cappuccino or any caffeinated beverage it WILL affect the results, My advice as a physician is no to drink coffee an if you do LET YOUR PHYSICIAN KNOW ABOUT IT!

If you go in the afternoon and drink coffee in the morning then it should not be too much of a problem.

Well, hope that explains everything

Answer 3

Yes caffeine increases both heart rate and blood pressure. It is a natural stimulant. Drinking one cup of coffee can and will show up on test results. It is a CNS stimulant.

Caffeine affects adenosine levels in your body, which serves to regulate blood pressure so indirectly it affects your blood pressure.

Answer 4

No...but it might make a difference in heart rate.

Salt makes a bigger difference in BP.