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Can an oral rinse cause a false positive in urine

A 52-year-old member asked:
Dr. PAUL EUN
Dr. PAUL EUN answered
37 years experience Obstetrics and Gynecology
Tumor: There are some tumors that produce HCG and it can cause false positive urine test. However, blood test is more likely to cause false positive result ... Read More

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A 43-year-old member asked:
Dr. Kathy Robinson
31 years experience Family Medicine
Yes: Because the hemoglobin in red blood cells is a protein, if there is blood in the urine it can test positive for protein. You would need to have your u ... Read More
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6 thanks
A 43-year-old female asked:
Dr. Victor Bonuel
37 years experience Internal Medicine
Check out this link.: Best wishes! http://dig.Pharm.Uic.Edu/faq/2011/feb/faq1.Aspx.
A 43-year-old female asked:
Dr. Deepika Goshike
24 years experience Family Medicine
Yes: Medications like benadryl, (diphenhydramine) ibuprofen, seroquel, verapamil, chlorpromazine, clomipramine, thioridazine, doxylamine can cause false po ... Read More
5
5 thanks
A 25-year-old female asked:
Dr. Andrea Brand
Specializes in Family Medicine
Herpes tests: Bacteria in the urine should not affect a herpes culture or detection of herpes antibodies in a blood specimen
A 30-year-old female asked:
Dr. Paul Grin
Dr. Paul Grin answered
35 years experience Pain Management
No, irrelevant: Gabapentin, a relatively new anticonvulsant compared to carbamazapine and phenytoin, differs from most other anticonvulsants because it has minimal dr ... Read More
A 41-year-old member asked:
Dr. Gurmukh Singh
48 years experience Pathology
Positive: Alcohol on skin can cause a positive etg and it would be positive not false positive.
A 42-year-old male asked:
Dr. Elise Sadoun
13 years experience Family Medicine
Unlikely: The alcohol is used as a solvent to dissolve the nicotine and other substances in the vapor liquid. It should evaporate while in the process of making ... Read More
A 29-year-old male asked:
Dr. Jessica Allan
22 years experience Internal Medicine
5 x its half life: A drug is considered gone after about 5 half lives. Trazodone has a biphasic elimination with a redistribution of about one hour and an elimination of ... Read More
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1 thank
A 38-year-old female asked:
Dr. Gurmukh Singh
48 years experience Pathology
What drug was tested: Hep C per se should not give a false positive drug test, however, it begs the question, how did you get Hep C? Were you abusing intravenous drugs? If ... Read More

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