👤 By the CinnaRN Clinical Content Team🕐 Updated 2026-08-23🏷️ Safety & Infection Control🔖 Free to read, print, and share
Also known as: methicillin-resistant staph · resistant staph · super bug · staph infection MRSA · MRSA infection
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Use this quick-reference guide to spot, treat, and prevent MRSA on the NCLEX. Keep it handy during review and on exam day!
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📒 The 1-minute cheat sheet
📌 Define
Methicillin-resistant S. aureus
Colonizes nares, skin, wounds
📌 Precautions
Contact: gown + gloves, private room
Dedicated equipment in room
🧪 Meds
Vancomycin = drug of choice
Monitor trough, watch nephrotoxicity
🎓 Teach
Hand hygiene = #1 prevention
Decolonize: mupirocin nares, CHG bath
📚 MRSA — 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.
MRSA is Staphylococcus aureus that has become resistant to methicillin and most beta-lactam antibiotics, making infections harder to treat. It commonly causes skin and soft-tissue infections (abscesses, cellulitis) but can also cause pneumonia, bacteremia, and surgical-site infections. People may be colonized (carrying it without illness, often in the nares) or actively infected. Contact precautions and prudent antibiotic use limit its spread.
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Key points
Understand these first
MRSA frequently appears as a red, swollen, painful, often purulent skin lesion that may look like a spider bite or boil.
It is spread mainly by direct contact and contaminated hands, surfaces, and shared items.
Colonization (especially nasal) means carriage without symptoms; infection means active disease.
Vancomycin and linezolid are common treatment choices because the organism resists penicillins and cephalosporins.
Healthcare-associated MRSA often causes bloodstream, wound, and ventilator-associated pneumonia infections.
Contact precautions with gown and gloves are required to prevent transmission.
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Nursing priorities
What to do, in order
Place the patient on contact precautions with gown and gloves and a private room or cohort.
Perform meticulous hand hygiene and dedicate equipment to the patient.
Administer vancomycin or other ordered antibiotics and monitor for therapeutic levels and adverse effects.
Care for wounds with sterile technique and keep drainage contained and covered.
Implement decolonization protocols (such as mupirocin nasal ointment and chlorhexidine baths) when ordered.
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Red flags — report now
Escalate immediately
Spreading erythema, fever, hypotension, or tachycardia may indicate bacteremia or sepsis and must be reported immediately.
Monitor vancomycin trough levels and renal function; report signs of nephrotoxicity or red man syndrome with rapid infusion.
Never allow MRSA wound drainage to contact other patients or shared equipment.
New respiratory distress in a MRSA-positive patient may signal MRSA pneumonia needing urgent attention.
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Labs & values
Numbers to know
Vancomycin trough goal typically 15-20 mcg/mL for serious infection
WBC normal 5,000-10,000/mm3 (elevated with active infection)
Wound or blood culture positive for MRSA
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Patient teaching
What patients must know
Keep wounds clean, dry, and covered, and do not share towels, razors, or personal items.
Wash hands frequently and complete the entire antibiotic course even if you feel better.
Report increasing redness, warmth, drainage, or fever around a wound to the provider.
❓ MRSA: NCLEX FAQs
What are the priority nursing interventions for MRSA?
Place the patient on contact precautions with gown and gloves and a private room or cohort. Perform meticulous hand hygiene and dedicate equipment to the patient. Administer vancomycin or other ordered antibiotics and monitor for therapeutic levels and adverse effects. Care for wounds with sterile technique and keep drainage contained and covered.
What are the warning signs of MRSA a nurse must report?
Spreading erythema, fever, hypotension, or tachycardia may indicate bacteremia or sepsis and must be reported immediately. Monitor vancomycin trough levels and renal function; report signs of nephrotoxicity or red man syndrome with rapid infusion. Never allow MRSA wound drainage to contact other patients or shared equipment. New respiratory distress in a MRSA-positive patient may signal MRSA pneumonia needing urgent attention.
What do I need to know about MRSA for the NCLEX?
MRSA frequently appears as a red, swollen, painful, often purulent skin lesion that may look like a spider bite or boil. It is spread mainly by direct contact and contaminated hands, surfaces, and shared items. Colonization (especially nasal) means carriage without symptoms; infection means active disease. Vancomycin and linezolid are common treatment choices because the organism resists penicillins and cephalosporins.
What patient teaching is important for MRSA?
Keep wounds clean, dry, and covered, and do not share towels, razors, or personal items. Wash hands frequently and complete the entire antibiotic course even if you feel better. Report increasing redness, warmth, drainage, or fever around a wound to the provider.
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Quick Tip
MRSA frequently appears as a red, swollen, painful, often purulent skin lesion that may look like a spider bite or boil.