understanding heart rate & blood pressure
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Understanding Heart Rate & Blood Pressure. Knowing your numbers and what they mean. What is blood pressure? What should your blood pressure numbers be? What do you do if your blood pressure numbers are too high?. What does your heart do? What is heart rate? - PowerPoint PPT PresentationTRANSCRIPT
Understanding Heart Rate & Blood Pressure
Knowing your numbers and what they mean
• What is blood pressure?• What should your blood
pressure numbers be?• What do you do if your blood
pressure numbers are too high?
• What does your heart do?• What is heart rate?• What should your heart rate
numbers be?
Your Heart• It looks like an ice-cream
cone!• Pointed bottom• Rounded top• Hollow• Can fill up with blood
– In middle of chest
– Between your lungs
– Size of fist
– Tipped over• More on left side
– Is a muscle• Acts like a pump
MORE ABOUT YOUR HEART
http://www.americanheart.org/downloadable/heart/102441059502447%20What%20Is%20the%20Heart.pdf
Your heart sends blood to the whole body• Oxygen• Nutrients• Carries away waste
Heart Parts:• Arteries• Capillaries• Veins
HEART RATE
-the number of heartbeats per unit of time- beats per minute (bpm)
-can vary as the body's need to absorb O2 and excrete CO2 changes, such as during exercise or sleep
HEART RATE-assists in the diagnosis & tracking of medical conditions
-monitor heart rate in athletes to gain maximum efficiency from their training
-measured by finding the pulse - at any point on thebody where an artery’s pulsation is transmitted to the surface
-No thumb!! Use your middle and index
The inside of the elbowBehind the knee Over the abdomenThe chest (apex of the heart)The temple
For Example….
Neck
Wrist
Resting heart rate -heart rate when they awake; lying down and not immediately post-exertion
-Typical healthy Hrrest in adults is 60–80 bpm
bradycardia-rates below 60 bpmtachycardia-rates above 100 bpm
-conditioned athletes often have resting heart rates below 60 bpm.
Q: What’s the deal with athletes?Lance Armstrong: Hrrest = 32 bpm
Blood Pressure Measurement• Force of blood pushing against the walls of the arteries
• Force• Amount of blood • Size • Flexibility of the arteries
http://www.nlm.nih.gov/medlineplus/ency/article/003398.htm
Aneroid Monitor Digital Monitor Finger/Wrist Monitor
3 Ways to Measure Blood Pressure
http://familydoctor.org/online/famdocen/home/common/heartdisease/treatment/128.html
Before Taking Your Blood Pressure…• Don’t use 30 minutes prior to
taking your blood pressure:
– Caffeine,
– Alcohol, or
– Tobacco.
• Go to the bathroom.
• Rest 3-5 minutes before taking your blood pressure.
• Sit comfortably.
– Legs and ankles uncrossed
– Back supported
What Does Your Blood Pressure Reading Mean?
Normal• Less than 120• Less than 80
Pre-hypertension• 120-139• 80-89
High Blood Pressure – Stage 1• 140-159• 90 – 99
High Blood Pressure – Stage 2• 160 or higher• 100 or higher
http://familydoctor.org/online/famdocen/home/common/heartdisease/treatment/128.html
http://www.nhlbi.nih.gov/health/dci/Diseases/Hbp/HBP_WhatIs.html
What Is Your Blood Pressure?
Lab: Measuring Heart Rate Friday February 11, 2011Look online for posted assignments
Lab 2: Measuring Blood PressureMonday February 14, 2011Look online for posted assignments