Difference between systolic and diastolic blood pressure is called?

Appeared in: PGIMER Sangrur NO - 2023

Explanation

Pulse pressure is defined as the difference between the systolic and diastolic blood pressure readings.
The formula is: Pulse Pressure = Systolic Blood Pressure - Diastolic Blood Pressure.
For a standard blood pressure of 120/80 mmHg, the pulse pressure is 40 mmHg (120 - 80).
A normal resting pulse pressure in a healthy adult is between 30 and 50 mmHg.

Option B: Pulse deficit is the difference between the apical pulse (heart rate at the chest) and the radial pulse (at the wrist), not between systolic and diastolic pressures.
Option C: Blood pressure is the overall measurement of force exerted on artery walls, expressed as two numbers (systolic/diastolic). It is not the difference between them.
Option D: Apical pulse is the measurement of the heart rate by listening to the heart's apex with a stethoscope. It is a rate, not a pressure difference.

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.
Monitoring pulse pressure is a crucial nursing assessment. A widening pulse pressure can be an early sign of increased intracranial pressure, while a narrowing pulse pressure can indicate decreased cardiac output, as seen in shock or cardiac tamponade.
Nurses must report abnormal pulse pressures to the healthcare provider, as it can signify a change in a patient's hemodynamic stability.
What if? If a patient with a head injury has a BP that changes from 120/80 mmHg to 150/70 mmHg, the pulse pressure has widened from 40 to 80 mmHg. This is a critical finding suggestive of Cushing's triad (a sign of increased intracranial pressure) and requires immediate medical intervention.

How to Approach the Question

This is a factual recall question that tests your knowledge of basic cardiovascular terminology.
First, read the question carefully to identify the key terms: 'difference', 'systolic', and 'diastolic blood pressure'.
Next, review the options provided.
Recall the definition of each term. Pulse pressure is the difference between systolic and diastolic pressure.
Pulse deficit is the difference between apical and radial pulse rates.
Blood pressure is the overall measurement, and apical pulse is a site for measuring heart rate.

Concept Tested & Keywords

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E6 Nursing Fundamentals Taylor p. 151-153

E6 Nursing Fundamentals Potter Perry 12e Part 3 p. 25-27

E6 Medicine Macleod Clinical Examination 15e p. 61-63

Practise the full PGIMER Sangrur NO - 2023

Attempt every question from this paper in a timed mock, then review the full solution for each one.