POSITIVE
Two red lines appear, the control line (C) and the test line (T). The result is positive. The intensity of the test line (T) may be less than that of the control line (C) . This is still a positive result.
NEGATIVE
Only the red control line (C) appears. The result is negative.
INVALID
If no red line appears in the position of control line (C), the test result is invalid regardless of color on the test line (T). Insufficient specimen volume or incorrect procedures are the most common reasons for control line (C) failure. Review the procedure and repeat the test with a new test device.
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