Positive
Lines at both C and T
What it means
What it doesn't mean
What to do next
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The ...
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HIV 1&2 Self-Test
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Send us a photo
A faint test line is still a test line, and it's the hardest thing to call on your own. Send a photo and someone on our team will look at it with you before you decide what it means.
Photograph the whole cassette, with the C and T letters visible.
Take it at 10 minutes. After 20 the result is no longer reliable, whatever it shows.
Daylight if you can, phone straight above, no shadow across the window.
How this works
Your photo is reviewed by a member of our support team. They are not healthcare professionals and cannot diagnose a condition or advise on treatment. What they can do is help you read what your test is showing.
Nothing here is automated. Your photo stays confidential and is used only to answer you.
Lost the card from your kit? You can still send a photo. Put the cassette on a plain white surface in good light.
Taking the test
Small handling details, and one that trips people up.
WATCH IT DONE
Documents
Questions
Yes. The instructions are explicit: the colour and intensity of the lines have no importance for interpretation. The line only needs to be even and clearly visible. A positive is a positive whatever the shade. If you can't tell whether what you're seeing is a line at all, send us a photo.
No. An overactive thyroid usually shows as a TSH below the normal range, and this test only flags TSH above 5 μIU/mL. Someone with hyperthyroidism would read negative here. The instructions say as much: a case of hyperthyroidism, though rare, cannot be excluded on the basis of a negative result.
No. The instructions say the test cannot and should not be performed if you're on hormonal thyroid treatment. Once you're being treated, TSH is monitored with a quantitative lab test, because the question stops being "is it raised" and becomes "is the dose right" — and this test can't answer that. Your doctor will have a schedule for it.
In the manufacturer's own evaluation of 220 whole blood samples compared against a laboratory ELISA, the test agreed with the lab 98.2% of the time, with sensitivity and specificity both at 98.2%. That's a strong figure for a screening test, and it's still a screening test — which is why the instructions require a positive to be confirmed with a quantitative lab TSH assay rather than acted on directly.
Then it's worth seeing a doctor, and a negative here isn't a reason not to. This test only detects a raised TSH, which is the common form of an underactive thyroid. It can't see an overactive thyroid, where TSH runs low instead, and it can't see central hypothyroidism, where TSH reads normal despite the thyroid being underactive. Those symptoms also have causes outside the thyroid entirely. A single screening result isn't an answer to how you feel.
Thyroid stimulating hormone. It's made by the pituitary gland, not the thyroid, and its job is to tell the thyroid how hard to work. When the thyroid is underactive the pituitary pushes harder and TSH rises — which is why a high TSH points to a slow thyroid rather than a fast one. It's the standard first-line marker for exactly that reason.
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Talk to a provider
A licensed clinician can review your result and arrange a quantitative TSH blood test
See how it worksNitric Oxide Test Strips give a semi-quantitative reading of nitrite in saliva for general health and wellness awareness. Nitrite is not the only indicator of wellbeing, and a reading can be affected by diet, timing, oral care and medication. This test does not diagnose, treat, cure or prevent any condition and is not a substitute for medical assessment. Talk to your provider about readings that concern you.