NBCSN Nationally Certified School Nurse Practice Exam 2025 - Free School Nurse Certification Practice Questions and Study Guide

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What is the causative agent of scarlet fever?

Staphylococcus aureus

Group A Streptococcus

The causative agent of scarlet fever is Group A Streptococcus. This bacterium, scientifically known as Streptococcus pyogenes, is responsible for a variety of illnesses, including strep throat, impetigo, and rheumatic fever, in addition to scarlet fever. The characteristic features of scarlet fever, such as the bright red rash and fever, arise as a result of toxins produced by these bacteria following an infection.

Recognizing Group A Streptococcus is critical for effectively diagnosing and treating scarlet fever in a school setting. Treatment typically involves antibiotics to target the bacteria, which can alleviate symptoms and prevent potential complications. Understanding this connection between Group A Streptococcus and scarlet fever is essential for a school nurse to promote health and manage infectious disease in the school environment.

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Escherichia coli

Streptococcus pneumoniae

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