Q:

If a blood pressure is stated as 120 over 80 (in units of mm Hg) this means:

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If a blood pressure is stated as 120 over 80 (in units of mm Hg) this means:


  1. pulse pressure is 120 mmHg.
  2. diastolic pressure is 80 mmHg below atmospheric pressure.
  3. systolic pressure is 80 mmHg above atmospheric pressure.
  4. systolic pressure is 120 mmHg above atmospheric pressure.

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D: The larger value (120) is the systolic pressure (i.e. at end of ventricular contraction) and states by how much the blood pressure is above atmospheric pressure.

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