What is the recommended diet for a cardiac patient?

SGPGI Nursing Officer-2024

Applied Nutrition & Dietetics

Medium

Appeared in: SGPGI Nursing Officer-2024

Explanation

A diet low in both sodium and cholesterol is the therapeutic standard for managing cardiovascular diseases.
Limiting sodium intake helps to control hypertension (high blood pressure) and reduce fluid retention (edema), which decreases the overall workload on the heart.
Restricting dietary cholesterol and saturated fats is essential to slow the progression of atherosclerosis, the process of plaque buildup in arteries that leads to heart attacks and strokes.

Option A: A high-cholesterol diet promotes the formation of atherosclerotic plaques in the arteries, which is a primary cause of coronary artery disease and is highly dangerous for a cardiac patient.
Option B: A high-sodium diet leads to fluid retention, which increases blood volume and blood pressure. This forces the heart to work harder, exacerbating conditions like heart failure and hypertension.
Option C: While a cardiac diet is technically a 'balanced diet,' this option is too general and not specific enough. Cardiac patients require targeted restrictions on sodium and cholesterol, which is the key therapeutic element.

Clinical Relevance

Nursing practice connection: Use the key finding related to Dietary management for cardiovascular disease to guide bedside assessment, documentation, and the next nursing action.
Nurses are central to patient education regarding cardiac diets. This includes teaching patients and their families how to read food labels for sodium and fat content, make healthy choices when grocery shopping, and prepare palatable low-sodium meals.
Consistent monitoring of a patient's weight, blood pressure, and presence of edema is a critical nursing function to assess adherence to and effectiveness of the prescribed diet.
What if? If the cardiac patient also has advanced chronic kidney disease (CKD), the diet becomes more complex. In addition to sodium and fat restrictions, the nurse would need to educate the patient on limiting potassium and phosphorus, as the failing kidneys cannot excrete these minerals effectively.

How to Approach the Question

First, identify the key term in the question: 'cardiac patient'. This signals a need for a therapeutic diet, not a general healthy diet.
Recall the two main physiological problems in most cardiac diseases: 1) high blood pressure (hypertension) and 2) clogged arteries (atherosclerosis).
Connect dietary components to these problems. Sodium is directly linked to blood pressure and fluid balance. Cholesterol and saturated fats are directly linked to atherosclerosis.
Evaluate each option against this understanding. A diet high in cholesterol or sodium would clearly worsen the patient's condition.
Compare 'Balanced diet' and 'Low sodium & low cholesterol'. The latter is a specific, therapeutic intervention that directly addresses the underlying issues of cardiac disease, making it the most precise and correct answer.

Concept Tested & Keywords

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E6 Nutrition Kumud Khanna 2e pp. 309-311, 319-321