AGENDA for 04/04/14 AGENDA: HOMEWORK: Due Tues, Online Quiz: OBJECTIVES:

Transcription

1 AGENDA for 04/04/14 AGENDA: 1. Pump Your Blood Performances : Blood Pressure Experimental Design and Writing a Formal Lab Report OBJECTIVES: 1. Measure blood pressure and use the reading to indicate the health of a person 2. Write a formal laboratory report HOMEWORK: Due Tues, Activity Packet Online Quiz: Opens Mon, Ends Wed, at 11:59 pm

2 4.2 Key Terms 1. Atrioventricular Node 2. Blood Pressure 3. Cardiology 4. Diastole 5. Diastolic Pressure 6. Electrocardiogram (EKG) 7. Heart Rate 8. Hypertension 9. Pacemaker 10.Pulse 11.Sinoatrial Node 12.Sphygmomanometer 13.Systole 14.Systolic Pressure

3 Unit 4: Heart Attack Lesson : Blood Pressure

4 Blood Vessels Aorta thickness = garden hose = Capillary thickness = piece of hair =

5 So how does it do it the job? Cardiac Cycle (about 75 times in 1 minute) Systole (heart contracts) Diastole (heart relaxes)

6 Blood Pressure Systole: the stage of the heart cycle in which the heart muscle contracts and the chambers pump blood. Systolic pressure: blood pressure in the arteries during contraction of the ventricles. Diastole: the stage of the heart cycle in which the heart muscle is relaxed, allowing the chambers to fill with blood Diastolic pressure: blood pressure that remains between heart contractions.

7 Using a Sphygmomanometer (Blood Pressure Cuffs) 1. Pump over 200 mm Hg 2. Slowly turn release valve to release air (reduce pressure) 3. 1 st pump SYSTOLE (heart contractions) 4. When pumping stops DIASTOLE (heart relaxes)

8 Blood Pressure Reading Pressure is measured in mm Hg systolic pressure diastolic pressure

9 Blood Pressure Reading Example, 117 mm Hg 76 mm Hg

10 AHA Blood Pressure Chart Source: derstanding-blood-pressure-readings_ucm_301764_article.jsp

11 Essential Questions for What is blood pressure? 5. How do systolic and diastolic blood pressure values relate to the movement of blood in arteries? 6. What factors can influence blood pressure?

12 4.2.2 Activity Objectives 1. Measure blood pressureand use the reading to indicate the health of a person 2. Write a formal laboratory report

13 4.2.2 Activity Checklist Part 1: Measuring Blood Pressure with a Sphygmomanometer (LB) Part 2: Measuring Blood Pressure with Probes (LB) Part 3: Experimental Design (LB) Part 3: Laboratory Report (turned in separately) turned in separately Conclusion Questions Total = 12

14 Activity Directions

15 Part 1: Measuring Blood Pressure with a Sphygmomanometer (LB) 1. Refer to curriculum file for more detailed instructions 2. Refer to steps What you need for this part: a) Label this in your LB as Part 1: Using a Sphygmomanometer b) 3 readings of SYSTOLIC PRESSURE c) 3 readings of DIASTOLIC PRESSURE d) Blood pressure readings of your partners

16 Part 2: Measuring Blood Pressure with Probes (LB) 1. Refer to curriculum file for more detailed instructions 2. Refer to steps What you need for this part: a) Label this in your LB as Blood Pressure Program b) 3 readings of (your and your partner s): 1. Systolic pressure 2. Diastolic pressure 3. Pulse c) Print-out of graph and table

17 Part 3: Experimental Design (LB) 1. Refer to curriculum file for more detailed instructions 2. Refer to steps (except 44 Lab Report turned in separately) 3. What you need for this part: a) Title this in your LB as Experimental Design b) Approval stamp for experimental design (LB) c) Follow-Up/Diagnosis notes (LB) d) 2 lifestyle changes for Anna for healthier blood pressure (LB)

18 Part 3: Laboratory Report (LB) 1. Refer to curriculum file for more detailed instructions 2. Refer to steps 44 and the LAB REPORT RUBRIC 3. Refer to the How to Write a Scientific Laboratory Report handout for more information 4. What you need for this part: a) This report will be turned in separately. Worth 20points b) Include: 1. Title Page 2. Abstract 3. Background 4. Hypothesis 5. Materials and Methods 6. Results 7. Discussion 8. Conclusion 9. Citations

19 Conclusion Questions 1. Did you get the same blood pressure reading manually as you did with the use of probes? Provide at least two reasons these values may be different. 2. What are two causes of blood pressure changes that might occur in a person within a given day? 3. What did you need to keep constant in your experiments? Why was it important to keep these factors constant? 4. What is prehypertension? Why do you think it is valuable to know if you are considered prehypertensive? 5. Explain how an ACE inhibitor might have helped Anna mediate her blood pressure.