Unit 2 - Section D - Measures of health

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Section D

Measures of health

Our blood provides every organ in our body with the materials they need to stay alive and healthy, this blood is carried from the heart to the rest of the body through arteries. Blood pressure is the pressure that our blood has against the walls of our arteries. Normal blood pressure varies from person to person but it is usually anything up to 140/90 but is lower fro children. The top number, systolic pressure; represents the maximum pressure in the arteries as the heart contracts and ejects blood into the circulation and the bottom number, diastolic pressure; represents the minimum blood pressure as the heart relaxes after a contraction.

Blood pressure is measured through an instrument called a sphygmomanometer, which is a rubber bag that is placed around the upper arm in line with the heart, and inflated through a rubber tube from the inside of a rubber bag to a digital pressure gauge. I used one of these instruments on Emma, I took three samples so that I could find an average and hopefully a more accurate result, I had to wait 3 minutes between each result so that Emma’s circulation could return to normal before I took another sample. The results were as follows:

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I compared these results to a blood pressure chart produced by the world health organisation and the international society of hypertension.

Emma recently went under anaesthetic but after the operation, due to hypotension (low blood pressure) and high temperature, she was kept in hospital overnight for observation. She was discharged the next day once it had dropped. After comparing Emma’s results to the chart, it shows that after her recovery her blood pressure has returned to normal because both ...

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