Difference between systolic and diastolic blood pressure is called?

AIIMS Patna NO - 2020

Applied Physiology

Easy

Appeared in: AIIMS Patna NO - 2020

Explanation

Pulse pressure is the numerical difference between the systolic (maximum) and diastolic (minimum) blood pressure readings.
It is calculated by subtracting the diastolic pressure from the systolic pressure (e.g., 120 mmHg - 80 mmHg = 40 mmHg).
This value reflects the force the heart generates with each contraction and provides insight into the elasticity and health of the arteries.
A normal pulse pressure for a resting adult is typically in the range of 40 to 60 mmHg.

Option A: Pulse range is not a standard clinical term used in cardiovascular assessment.
Option B: Pulse length is not a standard clinical term used for measuring blood pressure or pulse characteristics.
Option C: Pulse deficit is the difference between the apical heart rate (counted by listening to the heart) and the peripheral pulse rate (counted at the wrist). It is not related to blood pressure.

Clinical Relevance

Nursing practice connection: Knowing Definition of Pulse Pressure helps nurses interpret findings accurately and avoid errors in routine assessment, medication administration, and patient teaching.
Nurses monitor pulse pressure as it provides clues about a patient's cardiovascular health beyond the standard systolic and diastolic numbers. A consistently high pulse pressure (wide) can indicate arterial stiffness, while a low pulse pressure (narrow) can signal poor heart function.
For example, in a patient with heart failure, a narrowing pulse pressure (e.g., 90/70 mmHg, pulse pressure of 20) is a concerning sign of decreasing cardiac output and may require urgent intervention.
What if? If a patient's blood pressure is 160/70 mmHg, the pulse pressure is 90 mmHg. This wide pulse pressure, even with a diastolic in the normal range, is a significant finding. It suggests increased arterial stiffness and is a strong predictor of cardiovascular events, prompting the nurse to assess for other signs of cardiovascular disease and notify the provider.

How to Approach the Question

First, identify the core of the question. It asks for the specific term for the 'difference between systolic and diastolic blood pressure'.
This is a factual recall question. Access your knowledge of cardiovascular terminology.
Evaluate each option. 'Pulse range' and 'pulse length' are not standard medical terms in this context, so they can be eliminated.
Differentiate between the remaining two valid medical terms: 'Pulse deficit' and 'Pulse pressure'.
Recall the definition of 'Pulse deficit': the difference between apical and radial pulse rates. This does not match the question.
Recall the definition of 'Pulse pressure': the difference between systolic and diastolic pressures. This directly answers the question.

Concept Tested & Keywords

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