blood pressure basics


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BLOOD PRESSURE BASICS. What is Blood Pressure?. The force of blood pushing against artery walls. What is an Average Blood Pressure? Reading?. The top number is the systolic pressure: the force of the blood pushing against the artery walls at the moment the heart pumps out the blood. ** - PowerPoint PPT Presentation




What is Blood Pressure?

The force of blood pushing against artery walls

2What is an Average Blood Pressure? Reading?

The top number is the systolic pressure: the force of the blood pushing against the artery walls at the moment the heart pumps out the blood. ** The bottom number is the diastolic pressure: the of the blood when the heart relaxes.

** Have the students feel their pulses, either carotid or radial. Tell them that the bulge they are feeling is their systolic blood pressure!


Ideal Blood Pressure

A simple way to remember: Normal blood pressure is below 120/80 mm Hg.

Teens may have lower blood pressures because of their age and their height. 90/60 might not be low for a teen.

Get a few volunteers to have their pressures taken. If many want theirs done, you can always do so at breaks. I wish I could find our blood pressure gauges! Its so important to engage all of our students.4HYPERTENSIONBlood pressure is normally high when:You are exercising or excited. Blood pressure drops back down to normal whenyou stop exercising or you calmdown. *What causes blood pressure to remain high all of the time?*Narrow arteries tense or constricted, hardened, or clogged *Too much blood volumeSodium holds water in your body, increasing the amount of blood.

How Much of a Health Problem is High Blood Pressure?What percentage of older adults end up with high blood pressure?50-75%Do teenagers ever get high blood pressure?Yes, about 10% have pre-hypertension and 3-10% actually have high blood pressure.

What Causes High Blood Pressure?Make a list of all the causes that you and your partner can think of. How many did you get?GeneticsAgeLack of exerciseUsing tobaccoHeavy use of alcoholUnmanaged, chronic stressToo many processed foods: a high sodium dietLack of fruits and vegetables: too little potassiumA high percentage of body fat: body composition problemsGive students a chance to interact with the material by doing a partner brainstorm. Give immediate feedback.7How Much Sodium Do We Need?500 mg. or _______ teaspoon1/4 tsp.How much do most of us eat? ______ tsp?4000-6000 mg. or 2-3 tsp.What is a safe level? _________________ 1500 mg is the recommended amount. 2400 mg. is the maximum amount noted.

Tell students that it is important to be familiar with the safe levels so they can make sense of food labels.8The Silent KillerWhy is hypertension called the silent killer?It has no symptoms.How can you find out if your blood pressure is high?Measure it on a regular basis.

What Problems Does Hypertension Cause?Heart FailureThe heart overworks, pumping against high pressure 24/7. It wears out early.StrokeArteries burst, usually in the brain. Or they may harden, defending against the high pressure.Kidney DamageWhere is Most Sodium Found in Our Diets?From processed and restaurant foods, we get:75%From the salt we add to food and the sodium which occurs naturally in food, we get the remaining:25%


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