A true positive will usually show up within the first couple of minutes. It could be what is sometimes called an "evaporation line". Generally, evaporation lines are light gray, shadowy lines and any pregnancy test can have this occur. It is when a faint test line appears AFTER the 10 minute time limit. This brand of test does not seem to have a problem with evaporation lines although no brand can say that it will never happen.

Samples containing 5 – 25 mIU/ml hCG may produce weak positive results. In such cases a repeat test is recommended 48 to 72 hours later. However, provided the Control Line is present a weak positive should be recorded as a valid positive result. The presence of the Test Line in the Result Window indicates a positive result, regardless of its intensity compared to the Control Line.

We always have LH in our systems, so the test can pick it up. Most of the tests don't show a full positive result until 25-40 mIU, but many will show a faint line with LH levels over 10 mIU. If your result line often has significant color, you should consider trying another brand. If you still get a significant line, you should consider having your doctor test your LH levels on the third day of your next cycle to see if your hormone levels are elevated.

The shade of red in the test region will vary, but it should be considered negative wherever there is even a faint pink line.

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Samples containing 5 – 25 mIU/ml hCG may produce weak positive results. In such cases a repeat test is recommended 48 to 72 hours later. However, provided the Control Line is present a weak positive should be recorded as a valid positive result. The presence of the Test Line in the Result Window indicates a positive result, regardless of its intensity compared to the Control Line.

The TB skin test can be falsely negative (e.g., show no reaction) in students who may have been infected recently (in the past several weeks). The TB germ grows slowly and your body’s immune system takes time to react to it. Therefore, when screening students who have been recently exposed to a person with active TB, you need to repeat the TB skin test 10 weeks later to be sure that you have not been infected with TB.

It’s normal for the result on the pregnancy test to be either fainter or darker than the control line. The reason it may be fainter could be due to less hCG in your urine, especially very early in your pregnancy. It may be darker if your pregnancy is more progressed. Occasionally the test may display a ???shadow' line when the positive result should be, disregard this if you cannot see it when holding the test at arms length away from you.

You may be pregnant and just didn't have a high enough level of hCG to show positive during the testing time frame. It could just be the way the test is made as well. You should not rely on any positive result that does not show up within the time limit stated in the test instructions.

A positive result will always be indicated by the presence of a distinct color band in the 'test' region of the pregnancy test strip or midstream test (accompanied by the presence of the 'control' band). If the test is faint (in comparison to the control band), the test may be positive, though the presence of hCG in the woman's body - or urine sample - may be low. The presence of hCG doubles every two days in a pregnant woman.

Any line in the test area, no matter how faint, should be interpreted as a negative test. Perform the second test (included with our Total Body and complete cleansers) and this will verify whether you are clean or not. For initial screening purposes though, a faint line in the test area should always be interpreted as a negative test.

Some women have a fade-in pattern where the test will get darker for a day or two before the positive result. This generally isn't anything to worry about, and may have the benefit of a bit of advanced noticed. If you find you have a fade-in pattern, you should begin having intercourse when the fade-in pattern starts.

You will always see a control line but if the test line shows up very faint pink or purple within the 10 minute cutoff time, you should assume you are pregnant. You should contact your doctor for further testing right away. You can also re-test in two days and you will probably see a darker line.

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There are 4 possible test results: "negative", "positive", "indeterminate", or "result not available." A "negative" test result means antibodies to the hepatitis C virus were not found in your test sample and it is extremely unlikely that you have been infected with the hepatitis C virus.

Many women seeking pregnancy want very much to "see a line". What may appear to be a faint line could be a shadow, blotch, or in some cases a rare evaporation mark. These are not a positive result. If you are pregnant, the test line will be distinct and obvious similar to the control line.

It could mean that your urine was more concentrated today causing the slightly darker test line. It could also mean that your surge is starting. It might be a good idea to start testing twice a day if you have this occur.