If you are actually pregnant, have recently been pregnant, or have reached menopause, you may get a misleading result. Any prescription drug or plant extract that artificially changes the estrogen level will affect your Luna readings. Please consult your health care provider to determine what affect these drugs may have.

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.

The only medications that can cause a false positive on a home pregnancy test are those than contain hCG itself. If you are taking fertility medications with hCG - e.g. Novarel, Profasi, Pregnyl - please consult your doctor regarding appropriate times and circumstances for using our tests. Other fertility drugs and medications that do not contain hCG will not precipitate false positive results. Similarly, progesterone will not cause a false positive as well.

It is possible to get a false positive test result. This happens when a doctor or laboratory has not performed a confirmatory antibody test before giving people their results. When a person has an antibody test, the lab usually runs two different kinds of tests. One is called an EIA test which is highly sensitive. It can sometimes overreact, so a positive result with the EIA is usually followed up with a RIBA test which is a sophisticated, highly-specific, antibody test.

A positive test result may mean that your dog has bladder cancer. However, there are conditions other than bladder cancer that can cause a positive result. A positive test result will be used in conjunction with signs, symptoms, and possibly other diagnostic tests such as ultrasound to make a definitive diagnosis for your dog.

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False positive tests are rare - though there are instances and conditions where they can occur. For example, some tissues in a non-pregnant woman can produce hCG, though the levels are usually so low they are not detectable by home pregnancy tests (though our tests are the most sensitive on the market). Secondly, research indicates that half of all "conceptions" (fertilized eggs) do not go forward as a developing pregnancy.

The most commonly used syphilis tests screen for an antibody to the syphilis organism. Lupus patients sometimes have a very similar antibody. This similar antibody, the antiphospholipid antibody (aPL), can cause an incorrect positive result on a syphilis test. If the doctor suspects that the patient may not really have syphilis, he may choose to then run a different, more complicated and expensive test that checks specifically for the syphilis organism.

Lola, Utah, USA: Yes, some elevated hCG levels can be due to other factors besides GTD or recurrent trophoblastic disease. Certain hormone fluctuations and proteins in the blood may interfere with blood test results. Both tests should be requested, especially in initial diagnosis of GTD, as well as diagnostic testing for suspected GTD, before any invasive treatment recommendations are pursued. Lola, Utah, USA: GTD is diagnosed and followed by measuring hCG hormone in the blood and urine.

Women have white stains in their underwear almost every day of the week that have nothing to do with sex. It's a normal cleansing action of the female body and it's why CheckMate was created, so that men could finally have a way to find out the stain is nothing if it is in fact nothing - instead of needlessly damaging or destroying their relationship for absolutely no reason.

Proper test procedure requires that the subject have nothing in their mouth for 10 to 15 minutes prior to testing. If the subject has anything with alcohol in their mouth just prior to testing, the alcohol in their mouth will contaminate the test, giving an artificially high reading. However, 15 minutes is sufficient time for all mouth alcohol to be dissipated.

Specifically, caffeine is a problem both directly and indirectly. Acetaminophen or any drugs containing acetaminophen can be a problem. No other medicinal source of interference has been identified. Clonidine or its metabolites show up in the chromatograms but they aren't a problem. Again, listing these interferences is best left up to the individual laboratory responsible for the test being performed. If the patient is not given a list of known interferences, be sure to insist on having a copy.

NO, in this instance the control line did not show up, therefore the test is invalid. For a positive test, only the control line will be visible. Check the cross-reactant guide under the heading of METHAMPHETAMINE and look for the possible cross-reactant drug. Pseudoephedrine is listed as a possible cross-reactant for Methamphetamine. Retest the person 4-5 days after they have not taken the medication.

The candidates are entitled for one personal and five institution copies of their Test Report Form free of charge WITHIN 4 WEEKS FROM THE TEST DATE. Any extra copy (institution only) thereafter cost ?5 each and are payable by postal order in advance. You need to fill in the Application for the Issue of Additional TEIS Payment Slip. If you are abroad you may fax us the TEIS Payment Slip (and the above document) clearly filled with your credit card details.

You are only permitted to have one copy of your, Test Report Form. If a university or an institution such as DIMA requires a copy of your IELTS test result we can send it directly on your behalf. You will need to fill out the appropriate section on your application form and provide a self-addressed, registered envelope.

Results from a test are labeled inconclusive if the molecule contains more than two unknown fragments, or the molecule contains a biophore that is not statistically significant or exists in a significantly different environment than in the database. The biophore establishes a baseline activity prediction that can be increased or decreased by modulating fragments or global properties such as LogP, large size (i.e. high molecular weight), or electronegativity.

Yes, a false positive test means the test looks as if it is positive, but it is really negative. This happens more often in people who have a low risk for the disease. It is important to confirm the test result a second time.

Yes, this happens when the person tested may have an early infection. He or she may not have developed antibody levels high enough that the test can measure. In addition, some people may lack the immune response necessary for the test to work well.