The normal blood pressure of an Adult is?

Appeared in: RRB Staff Nurse Kolkata-2015

Explanation

A blood pressure of 120/80 mmHg is the standard reference value for a normal reading in an adult.
This reading consists of a systolic pressure of 120 mmHg, which is the pressure when the heart contracts, and a diastolic pressure of 80 mmHg, which is the pressure when the heart is at rest.
Official guidelines classify normal blood pressure as a systolic reading of less than 120 mmHg AND a diastolic reading of less than 80 mmHg, making 120/80 the upper limit of the normal range.

Option B: A diastolic pressure of 100 mmHg is significantly elevated and falls into the Hypertension Stage 2 category, even if the systolic pressure is normal.
Option C: Both the systolic pressure (150 mmHg) and diastolic pressure (100 mmHg) are well above the normal range, classifying this reading as Hypertension Stage 2.
Option D: While the diastolic pressure (60 mmHg) is normal, the systolic pressure (150 mmHg) is high. This condition is known as Isolated Systolic Hypertension and is a common form of high blood pressure, especially in older adults.

Visual 1: Chart: Blood Pressure Categories. A visual chart illustrating the different categories of blood pressure (Normal, Elevated, Stage 1 & 2 Hypertension, Hypertensive Crisis) with their corresponding systolic and diastolic ranges.

Clinical Relevance

Nursing practice connection: Knowing Normal blood pressure values in adults helps nurses interpret findings accurately and avoid errors in routine assessment, medication administration, and patient teaching.
Accurate blood pressure measurement is a fundamental nursing skill essential for screening, diagnosing, and managing hypertension.
Hypertension is often called the 'silent killer' because it typically has no symptoms but is a major risk factor for heart disease, stroke, and kidney failure.
Nurses play a crucial role in educating patients about lifestyle modifications, such as diet, exercise, and medication adherence, to control high blood pressure.

How to Approach the Question

This is a factual recall question that tests your knowledge of standard physiological values.
First, identify the key terms in the question: 'normal blood pressure' and 'Adult'.
Recall the standard reference value for normal adult blood pressure from your studies.
Compare the given options to this standard value. The value 120/80 mmHg is the universally recognized benchmark for normal blood pressure.
Eliminate the other options by recognizing that they represent various stages of hypertension (high blood pressure).

Concept Tested & Keywords

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Practise the full RRB Staff Nurse Kolkata-2015

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