Which of the following would be considered a positive reaction to a tuberculin skin test?

Question

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A positive reaction to a tuberculin skin test is typically defined as a raised red area of 10 mm or more in diameter at 48 to 72 hours after injection. The closest option to meeting this criterion is choice B with a raised red area of 8 to 10 mm, which can be considered a positive reaction for people who are at higher risk for tuberculosis, such as those with HIV or recent exposure to tuberculosis.

Which of the Following Would Be Considered a Positive Reaction