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Pulmonary Edema — NCLEX Cheat Sheet

Pink frothy sputum = hallmark
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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: fluid in the lungs · flash pulmonary edema · wet lungs · water in lungs

Pulmonary Edema — medical illustration
Pulmonary Edema — medical illustration. Illustration: Servier Medical Art via Wikimedia Commons, CC BY-SA 3.0.
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Use this quick-reference guide to spot, treat, and prevent Pulmonary Edema on the NCLEX. Keep it handy during review and on exam day!

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📒 The 1-minute cheat sheet

⚠️ Causes

  • Left-sided HF #1 cause
  • Fluid overload, MI, valve disease

🩺 Signs

  • Pink frothy sputum = classic
  • Crackles, dyspnea, orthopnea
  • Anxiety, restless, ↓ SpO2

✅ Do

  • High Fowler's, legs dependent
  • O2, morphine, furosemide IV
  • Nitro → ↓ preload; monitor I&O

📌 Avoid

  • Lying flat → worsens dyspnea
  • IV fluids unless ordered

📚 Pulmonary Edema — 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.

Pulmonary edema is the accumulation of fluid in the alveoli and lung interstitium that severely impairs gas exchange, most commonly from left-sided heart failure that backs blood up into the lungs (cardiogenic). It is an acute life-threatening emergency. The hallmark is pink, frothy sputum with severe dyspnea and a sense of suffocation.
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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

❓ Pulmonary Edema: NCLEX FAQs

What are the priority nursing interventions for Pulmonary Edema?

Place the patient in high Fowler's with legs dependent to decrease venous return (preload). Administer high-flow oxygen and prepare for noninvasive ventilation or intubation. Give IV loop diuretics (furosemide) to reduce fluid volume as ordered. Administer vasodilators (nitroglycerin) and morphine as ordered to reduce preload and anxiety.

What are the warning signs of Pulmonary Edema a nurse must report?

Pink frothy sputum with severe respiratory distress is an emergency requiring immediate intervention. Falling oxygen saturation, decreasing level of consciousness, or hypotension signal decompensation. Worsening crackles and rising respiratory rate despite treatment require rapid escalation.

What do I need to know about Pulmonary Edema for the NCLEX?

Severe dyspnea, orthopnea, and pink frothy sputum are the classic signs. Coarse crackles heard throughout the lung fields and tachypnea reflect alveolar flooding. Anxiety, restlessness, a feeling of suffocation, and tachycardia are common. Cool clammy skin, cyanosis, and hypoxemia develop as gas exchange fails.

What patient teaching is important for Pulmonary Edema?

Weigh daily at the same time and report a gain of 2 to 3 pounds in a day or 5 pounds in a week. Follow a low-sodium diet and any prescribed fluid restriction. Take diuretics and heart medications as prescribed and report increasing shortness of breath or swelling.

Quick Tip

Severe dyspnea, orthopnea, and pink frothy sputum are the classic signs.

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