Blood test and urine toxicology test.
Does anyone know anything else that could cause a high score for alcohol in the urine test but negative (0)on my blood tests. Read More. She is very worried as to whether she could have gotten date rape drug and taken advantage of or if the positive blood test is a false result. Dear Sir: The blood alcohol test detects the amount of alcohol is a patient's blood at the time of testing. The blood alcohol test (BAC) is one of the most accurate methods to diagnose blood alcohol levels. However, there are some medicines that can alter the blood alcohol test results. Some over the counter medications contain a certain content of alcohol, including cold and cough medications, mouthwashes, and certain prescription medications such as Dilantin, Theophylline, Furosemide, Lomotil, and CImetidine elixirs. The Causes of a False Positive for an Alcohol Test; Prescription Medications That Cause False Positive Home Drug Tests; Comments. Mouthwash. Mouthwash commonly contains high amounts of alcohol. This causes false positives in traditional alcohol tests such as a breathalyzer. If small amounts of mouthwash are swallowed or absorbed in the mouth, an EtS or EtG urine alcohol test could show up as a false positive. Making the world better, one answer at a time. There are several factors to consider in a false positive blood alcohol test. Firstly blood test and urine toxicology test are currently the most reliable method in diagnosing over consumption. However, many medications such a dilatin can produce higher sodium serum in the blood stream.
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what factors could cause false positive for blood ethanol test