North Carolina EMT State Practice Exam

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Prepare for the North Carolina EMT State Exam with interactive quizzes and comprehensive explanations. Master your skills and gain confidence by reviewing key topics before test day!

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What virulent disease can remain communicable in dried blood for days or weeks?

Hepatitis B
Hepatitis C
HIV
Influenza

The correct answer is: Hepatitis C

The virulent disease that can remain communicable in dried blood for days or weeks is Hepatitis B. This virus is known for its resilience and ability to survive outside the human body, particularly in dried blood, for extended periods. This characteristic makes it a significant concern in healthcare settings and situations where blood exposure may occur. Hepatitis B can remain infectious for at least 7 days after the blood has dried, which heightens the risk of transmission even after an apparent cleanup. Hepatitis C does not have the same level of environmental stability as Hepatitis B. While it can be transmitted through blood, it does not survive as long in dried conditions, making it less communicable in that state. HIV, although it can be present in blood, is less stable outside a host and typically does not remain infectious in dried blood after a few hours under normal environmental conditions. Influenza is primarily a respiratory virus, spreading mainly through droplets rather than blood, so it does not apply to this question.