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The Patient Bar (vertical line) has appeared but it is fainter than the Minus Bar (horizontal line). How should this result be interpreted?

April 26, 2017appeared bar fainter horizontal interpreted line minus patient vertical

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The Patient Bar (vertical line) has appeared but it is fainter than the Minus Bar (horizontal line). How should this result be interpreted?

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The presence of a Patient Bar is indicative of a positive result providing that the test was read at the correct time. The strength of the patient bar depends on the amount of Streptococcus group A antigen in the sample extract; hence low-level antigen would result in a weak patient bar.