What is the progressive narrowing of coronary arteries, which causes heart pain across the chest, called?

Raj. CHO - 2023

Medical & Surgical Nursing

Easy

Appeared in: Raj. CHO - 2023

Explanation

Angina pectoris is the clinical syndrome characterized by chest pain or discomfort.
This pain is caused by transient myocardial ischemia, where the heart muscle doesn't get enough oxygen-rich blood.
The question describes the classic presentation of angina: pain resulting from the progressive narrowing of coronary arteries.
Unlike a heart attack, the ischemia in angina is temporary and does not cause permanent death (necrosis) of the heart muscle.

Option A: Myocardial infarction (MI), or a heart attack, involves the death (necrosis) of heart muscle tissue due to a complete and prolonged blockage of a coronary artery. The question describes pain from narrowing, not complete blockage and tissue death.
Option B: Coronary atherosclerosis is the underlying disease process involving the buildup of plaque that causes the progressive narrowing of the arteries. It is the cause, not the name of the resulting chest pain symptom.
Option C: Necrosis is a general medical term for the death of body tissue. While it occurs during a myocardial infarction, it is the outcome of prolonged ischemia, not the name for the chest pain itself.

Visual 1: Diagram - An illustration comparing a healthy coronary artery with one narrowed by atherosclerotic plaque, showing how blood flow is restricted.
Visual 2: Chart - A comparison table highlighting the key differences in symptoms, cause, and outcome between Stable Angina, Unstable Angina, and Myocardial Infarction.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Definition and characteristics of Angina Pectoris as background academic context rather than a clinical decision trigger.
A key nursing responsibility is to quickly assess a patient's chest pain to differentiate between stable angina and a more serious acute coronary syndrome like unstable angina or MI.
Immediate nursing interventions for a patient with suspected angina include ensuring the patient rests, administering prescribed sublingual nitroglycerin, monitoring vital signs, and obtaining a 12-lead ECG.
Patient education is crucial, focusing on recognizing angina triggers, understanding how to use nitroglycerin, and knowing when to seek emergency help (e.g., if pain is not relieved by 3 doses of nitroglycerin taken 5 minutes apart).

How to Approach the Question

First, break down the question into its core components: 1) a process: 'progressive narrowing of coronary arteries' and 2) a symptom: 'heart pain across the chest'.
The question asks what the 'heart pain' is 'called'. This directs you to find the term for the symptom, not the underlying process.
Evaluate the options. 'Coronary atherosclerosis' describes the narrowing process, not the pain.
'Myocardial infarction' and 'necrosis' describe tissue death, which is a more severe outcome than just pain from narrowing.
'Angina pectoris' is the specific medical term for chest pain caused by myocardial ischemia.
Therefore, match the term 'Angina pectoris' to the symptom of 'heart pain' described in the question.

Concept Tested & Keywords

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