1. Wednesday February 9, 2011 Review and collect HW-follow up questions Review important points for the lab report -rough draft due tomorrow!! Return quizzes and homework Heart Rate and Blood Pressure Updated powerpoint lectures have been posted

2. Understanding Heart Rate & Blood Pressure Knowing your numbers and what they mean

3. 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?

4. Your Heart It looks like an ice-cream cone! Pointed bottom Rounded top Hollow Can fill up with blood

5. – 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

6. Your heart sends blood to the whole body Oxygen Nutrients Carries away waste Heart Parts: Arteries Capillaries Veins

7. HEART RATE -the number of heartbeats per unit of time- beats per minute (bpm) -can vary as the body's need to absorb O 2 and excrete CO 2 changes, such as during exercise or sleep

8. 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

9. The inside of the elbow Behind the knee Over the abdomen The chest (apex of the heart) The temple For Example…. Neck Wrist

10. Resting heart rate -heart rate when they awake; lying down and not immediately post-exertion -Typical healthy Hr rest in adults is 60–80 bpm bradycardia-rates below 60 bpm tachycardia-rates above 100 bpm -conditioned athletes often have resting heart rates below 60 bpm. Q: What’s the deal with athletes? Lance Armstrong: Hr rest = 32 bpm

11. 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

12. Aneroid MonitorDigital MonitorFinger/Wrist Monitor 3 Ways to Measure Blood Pressure http://familydoctor.org/online/famdocen/home/common/heartdisease/treatment/128.html

13. 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

14. 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

15. What Is Your Blood Pressure?

16. Lab 1: Measuring Heart Rate Friday February 11, 2011 Look online for posted assignments Lab 2: Measuring Blood Pressure Monday February 14, 2011 Look online for posted assignments