Microbial Contamination in Blood Cultures

To increase the volume of blood collected for culture

To reduce the risk of needle breakage during collection

To avoid mixing up the order of draw for different tests

To prevent contamination of the specimen by microorganisms normally found on the skin (correct)

To avoid confusion with other test tubes

To speed up the collection process

To ensure they are collected when sterility of the site is optimal (correct)

To prevent clots from forming in the tubes

Because they are typically drawn separately (correct)

Because they are less prone to contamination

Because they are not as important as other tests

Because they require longer incubation periods

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