NCLEX Review Guide: Rubeola (Measles)

Disease Overview

• Rubeola is a highly contagious viral infection caused by the measles virus (paramyxovirus) that primarily affects children and spreads through respiratory droplets.
• The disease has a 10-14 day incubation period and progresses through distinct stages with characteristic symptoms.

Clinical Stages

• Prodromal Stage (1-3 days): High fever (104°F), malaise, anorexia, and the classic "4 C's" symptoms appear before the rash.
• Exanthem Stage: Koplik's spots (small red spots with white centers) appear on buccal mucosa 1-2 days before the rash.
• Rash Stage: Characteristic maculopapular rash begins at hairline/forehead, spreads downward to trunk and extremities over 3-4 days.

Isolation Precautions

• Implement airborne precautions immediately - negative pressure room, N95 masks for all healthcare workers entering room.
• Maintain isolation for 4 days after rash onset or until fever-free for 24 hours in immunocompromised patients.

Supportive Care

1. Monitor temperature and provide antipyretics (acetaminophen or ibuprofen) - avoid aspirin due to Reye's syndrome risk
2. Maintain adequate hydration with increased fluid intake
3. Provide humidified air and encourage rest
4. Dim lighting to reduce photophobia discomfort
5. Monitor for complications: pneumonia, encephalitis, secondary bacterial infections

Prevention

• MMR vaccine is highly effective (97% efficacy after 2 doses) and given at 12-15 months and 4-6 years.
• Post-exposure prophylaxis with MMR vaccine within 72 hours or immunoglobulin within 6 days for high-risk individuals.

Serious Complications

• Pneumonia - most common cause of death in children under 5
• Encephalitis - occurs in 1:1000 cases, monitor for altered mental status
• Secondary bacterial infections due to immunosuppression
• Subacute sclerosing panencephalitis (SSPE) - rare, fatal late complication