NIH Module 7 – Laboratory Testing, Diagnostic Imaging, And Screening Practice Test

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Bloodborne transmission refers to pathogens transmitted through blood or blood products, either directly or indirectly. Which statement is correct?

Through respiratory droplets Through contaminated water Through blood or blood products, either directly or indirectly Through vectors

Correct Answer:

Through blood or blood products, either directly or indirectly

Explanation:

Bloodborne transmission means pathogens that live in blood can be spread when blood or blood-containing products come into contact with another person’s bloodstream or mucous membranes. This can happen directly, such as through a needlestick injury or a cut with contaminated blood, or indirectly, through contaminated medical equipment, reused needles, or transfusion of infected blood or blood products. Examples include HIV, hepatitis B and C. It is not driven by respiratory droplets, contaminated water, or vectors like insects, which are separate routes of transmission.

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