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10 Cards in this Set
- Front
- Back
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sphygmomanometer -Aneroid sphygmomanometers -Electronic sphygmomanometers
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a blood pressure cuff -- aneroid literally means “not wet”
(old style is mercury gravity) (Aneroid is a dial) (Electronic is digital) |
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Blood pressure is taken by
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using a stethoscope and a sphygmomanometer
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Explain blood pressure numbers
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systolic –
contracting action of heart muscle-shows maximum pressure normal 110 – 140 mm/Hg diastolic -indicates ability of arterial system to accept pulse of blood forced into system when left ventricle contracts, i.e. resting heart - shows minimum pressure. normal 60–80 mm/Hg |
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What are some reasons blood pressure varies?
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age, weight, physical status, gender, body position, time of day
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Hypertension
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Caused when arterioles throughout the body stay constricted, driving up the pressure in the larger blood vessels. "silent killer“ The number one cause of strokes, and can cause heart failure, and kidney damage.
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Hypotension
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Low blood pressure ----tiredness, exhaustion ,lack or sudden loss of energy, dizziness when bending over, white or blue finger tips or nails (cyanosis), cold hands and feet.
Most persons with low blood pressure are underweight and have digestion and assimilation problems due to the lack of enzymes. |
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What is homeostasis?
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?
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Hypothalamus
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– Portion of the brain that maintains homeostasis
– Blood pressure – Temperature – Hunger – Thirst – Circadian cycles/rhythms • (24 hour cycle of physiological processes |
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Steps to measure blood pressure?
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The patient may be sitting or lying down, but the cuff should be at the level of the heart. Either arm may be used.
Wind the cuff of sphygmomanometer around arm above the elbow. Locate the brachial artery and place the stethoscope there. Hold it firmly in place• Inflate cuff to a level higher than the expected systolic pressure (150+) • Deflate the cuff slowly. • Listen with a stethoscope over the brachial artery. When the cuff reaches systolic pressure, a tapping sound is heard in sync with the heart beat. Record the first sound as the systolic pressure • Record the point at which the sounds disappear. This is the diastolic pressure. |
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Noct/o
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“night” nocturnal = pertaining to the night
nocturia = excessive urination at night |
