Pink/Purple Control Line
Hi there, I took a Biosure test and after respecting all the indications and the 15mins, only the control line was visible but it was a little lighter in the middle (pink) and darker in the corners (deep purple). Do you confirm this is a valid result although the control line wasn’t uniform in its colour?
Best regards
Milan76
Used on 20th December 2018
Thanks for both your clarifications, my exposure was about 20 weeks ago then the test is conclusive.
Very good service, thanks!
Gary Carpenter, BioSure (UK) Limited
Work on 20th December 2018
Hi Milan76
Thanks for contacting us.
Yes the result will still be valid. Sometimes the test will flow slightly differently and this could be the reason for the way that your control line has developed. The fact that the control line has developed means that the sample and buffer have passed across the test line area, so if antibodies to HIV had been present in your sample the test line would have developed.
I hope that this answers your question.
Kind regards
Gary Carpenter, BioSure (UK) Limited
Francesca Bard, BioSure (UK) Ltd
Work on 20th December 2018
Hi Milan76. Yes, as long as the control line has appeared your test has worked, this can only appear visible if enough blood has been used and the instructions have been followed. If your potential exposure was more than 12 weeks ago then your negative test result will be conclusive. I hope this helps and thank you for choosing BioSure. Kindest regards Francesca Bard, BioSure (UK) Ltd
