When SBP is between 130 and 139 mmHg, how is blood pressure classified?

MP CHO - 2022

Medical & Surgical Nursing

Easy

Appeared in: MP CHO - 2022

Explanation

According to the 2017 ACC/AHA guidelines, a systolic blood pressure (SBP) of 130–139 mmHg or a diastolic blood pressure (DBP) of 80–89 mmHg is defined as Stage 1 Hypertension.
This stage indicates that the pressure in the arteries is consistently higher than normal, increasing the risk for cardiovascular disease.
Lifestyle modifications are the cornerstone of management for Stage 1 Hypertension, and antihypertensive medication may be considered based on the individual's overall cardiovascular risk profile.

Option A: This is incorrect. Normal blood pressure is defined as an SBP less than 120 mmHg AND a DBP less than 80 mmHg.
Option B: This is incorrect. Elevated blood pressure is a distinct category with an SBP of 120–129 mmHg AND a DBP less than 80 mmHg. The SBP in the question (130-139 mmHg) is above this range.
Option D: This is incorrect. Stage 2 Hypertension is a more severe category, defined as an SBP of 140 mmHg or higher OR a DBP of 90 mmHg or higher.

Clinical Relevance

Nursing practice connection: Knowing Blood Pressure Classification (ACC/AHA Guidelines) helps nurses interpret findings accurately and avoid errors in routine assessment, medication administration, and patient teaching.
Accurate classification of blood pressure is a fundamental nursing skill crucial for identifying patients at risk, initiating timely interventions, and providing appropriate patient education on lifestyle changes and medication adherence.
Nurses play a key role in obtaining accurate BP measurements, often requiring readings on multiple occasions to confirm a diagnosis of hypertension, as 'white coat hypertension' can cause falsely elevated readings in a clinical setting.
What if? If a patient's reading was 135/78 mmHg, they would still be classified as Stage 1 Hypertension. The 'higher category rule' applies; since the systolic pressure (135) falls into Stage 1, the entire reading is classified as Stage 1, even though the diastolic pressure (78) is in the normal range.

How to Approach the Question

First, identify the key clinical value provided in the question: a systolic blood pressure (SBP) between 130 and 139 mmHg.
Next, recall the standard blood pressure classification system used in current clinical practice, which is the 2017 ACC/AHA guidelines.
Mentally review or visualize the categories: Normal (less than 120/80), Elevated (120-129 and less than 80), Stage 1 (130-139 or 80-89), and Stage 2 (140 or higher or 90 or higher).
Compare the given SBP range (130-139 mmHg) to these categories. It directly matches the definition for Stage 1 Hypertension.
Eliminate the other options based on their definitions: 'Normal' and 'Elevated' are for lower pressures, and 'Stage 2' is for higher pressures.

Concept Tested & Keywords

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