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Lifestyle, health and style Lesson 13 CVD risk factors – Blood pressure CVD risk factors – Blood pressure • Learning Objectives – Be able to measure blood pressure accurately – Explain the role of high blood pressure in cardiovascular disease – Develop skills in concept mapping Starter 1. Interactive presentation from SNAB online Task 1 1. Use the sphygmomanometer to measure your blood pressure – Follow guidelines on activity 1.12 – Answer the questions on 1.12 2. While you wait for the sphygmomanometer– complete Blood pressure summary sheet Activity 1.13 • Safety – Never use a sphygmomanometer or blood pressure monitor unsupervised. – Do not over-inflate the cuff or leave it inflated for longer than necessary. – Do not worry if your blood pressure seems too high or too low. This is not a definitive medical measurement of blood pressure, just an estimate. – You should not use one of these monitors if: – You know you suffer from heart rhythm disorders, or you already suffer from severe atherosclerosis – unlikely unless you are a mature student – or you have a cardiac pacemaker. Questions Q1What do you think the beeps made by a digital pressure monitor at step 8 of the procedure represent? Q2What is happening to blood flow in the brachial artery at step 9 (both procedures)? Q3Comment on your results if you have taken several readings from different people within the group. Q4A person has a blood-pressure reading of about 170/95 mmHg. Would this be classed as high blood pressure? Q5Why can elevated blood pressure increase the risk of cardiovascular disease? Extension question Q6Blood pressure can vary between individuals and can change through the day. What effect might posture and relaxation have on blood pressure? Plan an experiment that would let you check out your idea. Activity 1.12 answers Blood pressure summary sheet The example should be used as a starting point, and your own map produced Plenary • How does blood pressure relate to CVD? Learning Outcomes Students should be able: • Know what is meant by the term blood pressure • Be able to measure blood pressure accurately • Explain the role of high blood pressure in cardiovascular disease
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