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Questions and Answers
What unit is standard for measuring blood pressure?
What unit is standard for measuring blood pressure?
- Millimeters of mercury (correct)
- Centimeters of water
- Pascals
- Bars
How is blood pressure typically expressed?
How is blood pressure typically expressed?
- As a single number
- In terms of systolic and diastolic pressure (correct)
- In fractions
- In liters per minute
In a blood pressure measurement of 120/80 mmHg, which number represents the systolic pressure?
In a blood pressure measurement of 120/80 mmHg, which number represents the systolic pressure?
- 100
- 120 (correct)
- 160
- 80
What does the diastolic pressure indicate in a blood pressure reading?
What does the diastolic pressure indicate in a blood pressure reading?
If a person's blood pressure is recorded as 130/85 mmHg, what is the diastolic pressure?
If a person's blood pressure is recorded as 130/85 mmHg, what is the diastolic pressure?
What is systolic pressure primarily defined as?
What is systolic pressure primarily defined as?
Which of the following statements about systolic pressure is accurate?
Which of the following statements about systolic pressure is accurate?
What primarily influences systolic blood pressure?
What primarily influences systolic blood pressure?
When is systolic pressure typically measured?
When is systolic pressure typically measured?
Which factor does NOT directly affect systolic pressure?
Which factor does NOT directly affect systolic pressure?
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Study Notes
Blood Pressure Measurement
- Blood pressure is measured in millimeters of mercury (mmHg).
- Blood pressure is expressed as systolic pressure over diastolic pressure (e.g., 120/80 mmHg).
Systolic Pressure
- Systolic pressure is the highest pressure exerted by blood against artery walls during ventricular contraction.
Diastolic Pressure
- Diastolic pressure is the lowest pressure exerted by blood against artery walls during the heart's resting period (ventricular relaxation).
Normal Blood Pressure Range
- Normal blood pressure range is 120 ± 20 mmHg.
Orthostatic Hypotension
- Orthostatic hypotension is a type of low blood pressure that occurs upon standing up.
- This occurs due to peripheral vasodilation without a corresponding increase in cardiac output.
- Slow standing, especially after bed rest, can help prevent orthostatic hypotension.
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