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Infective Endocarditis — NCLEX Cheat Sheet

Infected heart valves/lining
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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: endocarditis · heart valve infection · bacterial endocarditis · IE

Infective Endocarditis — medical illustration
Infective Endocarditis — medical illustration. Illustration: BruceBlaus via Wikimedia Commons, CC BY-SA 4.0.
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Use this quick-reference guide to spot, treat, and prevent Infective Endocarditis on the NCLEX. Keep it handy during review and on exam day!

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📒 The 1-minute cheat sheet

🩺 Signs

  • Fever, new murmur, chills
  • Janeway lesions, Osler nodes
  • Splinter hemorrhages, Roth spots
  • Petechiae, fatigue, weight loss

🚩 Report

  • Embolism → stroke, MI, kidney
  • HF from valve damage

✅ Do

  • Blood cultures, then IV abx 4-6wk
  • Monitor for emboli signs

🎓 Teach

  • Prophylactic abx before dental
  • Good oral hygiene

📚 Infective Endocarditis — 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.

Infective endocarditis is an infection of the inner lining of the heart and the heart valves, usually bacterial, that forms vegetations on valve surfaces. These vegetations can destroy valves and break off as septic emboli that travel to the brain, lungs, kidneys, and extremities. Risk factors include IV drug use, prosthetic valves, recent invasive or dental procedures, and pre-existing valve disease.
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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

❓ Infective Endocarditis: NCLEX FAQs

What are the priority nursing interventions for Infective Endocarditis?

Obtain blood cultures from multiple sites before starting antibiotics. Administer long-term IV antibiotic therapy exactly as scheduled, often for 4 to 6 weeks. Monitor for signs of embolization to the brain, lungs, kidneys, and extremities. Assess for and monitor signs of heart failure from valve damage.

What are the warning signs of Infective Endocarditis a nurse must report?

New neurologic deficits, chest pain, or limb pain and pallor signal embolization and must be reported immediately. Signs of acute heart failure such as new crackles, dyspnea, or worsening murmur require urgent escalation. Persistent fever despite antibiotics may indicate treatment failure or abscess and must be reported.

What do I need to know about Infective Endocarditis for the NCLEX?

Classic findings include fever, a new or changing heart murmur, and fatigue. Peripheral signs from emboli include Janeway lesions, Osler nodes, splinter hemorrhages, and Roth spots in the eyes. Septic emboli can cause stroke, pulmonary embolism, splenic infarct, and limb ischemia. Blood cultures identify the causative organism and guide antibiotic therapy.

What patient teaching is important for Infective Endocarditis?

Complete the entire course of IV antibiotics even after symptoms improve to fully clear the infection. Take prophylactic antibiotics before dental and invasive procedures if you have a prosthetic valve or prior endocarditis. Maintain good oral hygiene and report any recurrence of fever, fatigue, or night sweats.

Quick Tip

Classic findings include fever, a new or changing heart murmur, and fatigue.

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