What is the normal systolic pressure?

Appeared in: RRB Nsg. Superintendent-20 July 2019 (Shift-3rd)

Explanation

According to current medical guidelines, a normal systolic blood pressure for an adult is defined as being less than 120 mm Hg.
The option '120 mm of Hg' represents the upper threshold of this normal range, making it the correct answer among the choices provided.
Systolic pressure specifically measures the force exerted on arterial walls during ventricular contraction (the heart's beat).

Option A: A systolic pressure of 180 mm Hg is severely elevated and is classified as a Hypertensive Crisis, which can lead to organ damage and requires immediate medical intervention.
Option B: 80 mm Hg is the upper limit for normal diastolic blood pressure. As a systolic value, it would indicate hypotension (abnormally low blood pressure).
Option D: A systolic pressure of 130 mm Hg is not normal. It is classified as Stage 1 Hypertension, indicating the patient has high blood pressure.

Visual 1: Chart: Blood Pressure Categories (AHA 2017 Guidelines) - A visual chart illustrating the different blood pressure ranges from normal to hypertensive crisis, helping to memorize the values.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Normal systolic blood pressure values as background academic context rather than a clinical decision trigger.
Accurate blood pressure measurement is a fundamental nursing skill critical for diagnosing hypertension, assessing cardiovascular risk, and monitoring treatment effectiveness.
Nurses play a key role in educating patients about lifestyle modifications (diet, exercise, stress reduction) to manage elevated blood pressure and prevent complications.
What if? If a patient's reading is 135/85 mm Hg, the nurse should recognize this as Stage 1 Hypertension, document the finding, inform the healthcare provider, and prepare to educate the patient on managing high blood pressure.

How to Approach the Question

First, identify the key terms in the question: 'normal' and 'systolic pressure'. This indicates the question is asking for a standard physiological value.
Recall the established medical guidelines for blood pressure classification in adults.
Remember that normal systolic pressure is less than 120 mm Hg and normal diastolic pressure is less than 80 mm Hg.
Evaluate each option against this standard. '120 mm of Hg' is the only option that fits within the normal range.
Eliminate the other options by identifying which category they fall into (e.g., hypertension, normal diastolic range).

Concept Tested & Keywords

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Guyton & Hall Textbook of Medical Physiology 13e — Part 2 p. 143-145

Practise the full RRB Nsg. Superintendent-20 July 2019 (Shift-3rd)

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