What causes false positive test results for rheumatoid arthritis?

Answer In order to test for rheumatoid arthritis, doctors use a test called rheumatoid factor (RF). Although the test often accurately indicates rheumatoid arthritis, a number of causes other than rheumat... Read More »

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What can cause false positive test results for THC?

An average drug test looks for concentrations of tetrahydrocannabinol (THC) above 20 to 50 nanograms per milliliter of blood to consider a person "positive" for marijuana. However, a drug test some... Read More »

What are the causes of false positive dna on paternity tests?

A false positive DNA paternity match can result from several factors including human error in DNA handling, labs with low standards of accuracy, or misidentification or outright fraud in collection... Read More »

False positive hiv test?

ONe reason for the false positive is because the test result was not conclusive. Means that the person performing the test or the test kit used were somehow at fault. Normally ELISA test is used fo... Read More »

Will I get false results if my glucose test strips are expired?

On One Hand: Wrong Results RiskNearly all doctors and medical-supply companies caution against using expired glucose test strips. Test strips should not be used after their expiration date or more ... Read More »