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Heart Failure — NCLEX Cheat Sheet

Pump fails → congestion
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👤 By the CinnaRN Clinical Content Team 🕐 Updated 2026-08-23 🏷️ Physiological Adaptation 🔖 Free to read, print, and share

Also known as: CHF · congestive heart failure · left-sided heart failure · right-sided heart failure

Heart failure: an enlarged, weakened heart that cannot pump effectively
Heart failure: an enlarged, weakened heart that cannot pump effectively. Illustration: https://www.myupchar.com/en via Wikimedia Commons, CC BY-SA 4.0.
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Use this quick-reference guide to spot, treat, and prevent Heart Failure on the NCLEX. Keep it handy during review and on exam day!

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📒 The 1-minute cheat sheet

📌 Types

  • Left → pulmonary congestion
  • Right → peripheral edema, JVD

🩺 Signs

  • Dyspnea, crackles, orthopnea
  • Pink frothy sputum = pulm edema
  • Weight gain, JVD, ↑ BNP

✅ Do

  • High Fowler's, O2, daily weight
  • Low Na+ diet, fluid restrict
  • Report > 2-3 lb/day gain

🧪 Meds

  • ACE/ARB, beta-block, diuretics
  • Digoxin, monitor K+ levels

📚 Heart Failure — full study notes

The cheat sheet above is your quick recall card. These notes go deeper — what it is, what to do first, what must be reported, and what to teach.

Heart failure is the heart's inability to pump enough blood to meet the body's needs. Left-sided failure backs blood up into the lungs (pulmonary congestion); right-sided failure backs blood up into the body (systemic/peripheral congestion). Memory aid: Left = Lungs, Right = Rest of body.
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Key points

Understand these first

Nursing priorities

What to do, in order
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Red flags — report now

Escalate immediately
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Labs & values

Numbers to know
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Patient teaching

What patients must know

❓ Heart Failure: NCLEX FAQs

What are the priority nursing interventions for Heart Failure?

Place in high-Fowler's position and give oxygen to ease dyspnea. Daily weights, strict I&O, low-sodium diet, fluid restriction as ordered. Give diuretics, ACE inhibitors/ARBs, and beta blockers as prescribed. Monitor potassium with loop diuretics; watch for digoxin response.

What are the warning signs of Heart Failure a nurse must report?

Sudden weight gain > 2–3 lb in a day or 5 lb in a week — report it. Pink frothy sputum and severe dyspnea signal pulmonary edema — emergency.

What do I need to know about Heart Failure for the NCLEX?

Left-sided: dyspnea, orthopnea, crackles, pink frothy sputum, fatigue. Right-sided: peripheral edema, jugular vein distention, weight gain, ascites, hepatomegaly. Daily weight is the most reliable indicator of fluid status (1 kg ≈ 1 L fluid). Elevated BNP supports the diagnosis.

What patient teaching is important for Heart Failure?

Weigh yourself daily at the same time and report rapid gains. Limit sodium; take medications even when feeling well.

Quick Tip

Left-sided: dyspnea, orthopnea, crackles, pink frothy sputum, fatigue.

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