Cardiac and DASH Diets on the NCLEX
Sodium limits for HF and hypertension, what DASH actually contains, teaching that works.
Cardiac diets come down to two numbers and one eating pattern. Sodium down, DASH up.
The sodium numbers
General population: under 2,300 mg/day. Hypertension and HF: most orders say 2 g (2,000 mg)/day, with 1,500 mg as the tighter AHA target. For scale, one teaspoon of salt is about 2,300 mg of sodium. One bowl of canned soup can spend half the day's budget.
What DASH is
Dietary Approaches to Stop Hypertension. 4-5 servings each of fruits and vegetables daily, whole grains, low-fat dairy, nuts and legumes several times a week. Limit red meat, sweets, and sugary drinks. It is rich in potassium, magnesium, and calcium, which is part of why it lowers BP. DASH plus sodium under 1,500 mg drops systolic BP by roughly 8-14 mmHg.
Teaching that sticks
Do not say avoid salt and stop. Teach specifics: take the shaker off the table, cook with herbs, lemon, and garlic instead. Rinse canned beans and vegetables. Choose fresh or frozen over canned. Deli meat, bacon, cheese, pickles, and soy sauce are the usual saboteurs. Restaurant and takeout food is presumed high sodium.
The HF-specific piece
Sodium restriction pairs with daily weights: report a gain of 2-3 lb in a day or 5 lb in a week. Some HF patients also carry a fluid restriction. A stem where the HF patient picks canned soup and a ham sandwich needs more teaching.
Frequently asked
Are salt substitutes fine for cardiac patients?
Often, but not with CKD, ACE inhibitors, ARBs, or spironolactone. They are potassium chloride. Check the med list first.
Is DASH only for hypertension?
It was built for BP, but it doubles as a heart-healthy pattern and appears in stems for HF and post-MI teaching too.
Quick check
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