Q:

What causes false positive THC tests?

A:

In adults, ibuprofen and hemp food products, including hemp oil supplements, cause false positives for THC, according to CVS.com. The University of North Carolina at Chapel Hill indicates that infants sometimes have a false positive THC test due to the chemicals in some baby soaps.

The screening tests used in employment and schools are more likely to return a false positive than the more precise tests where a lab collects and tests urine samples, according to CVS.com. Urine tests are often preferred as they are less invasive than other types of testing. The screening test alerts the potential employer if any of several drugs are in the urine above the threshold level. A false positive may prevent an applicant from getting a job or a student from playing a sport. The applicant has a better chance of protecting his rights if he knows he has taken legal substances that sometimes cause a false positive.

Hospitals also test babies for the presence of THC in their urine, according to the University of North Carolina at Chapel Hill. Positive tests may indicate a mother using marijuana while pregnant and, along with other indicators, may precipitate a call to child protective services. Research comparing the way the nursing staff collected the urine samples indicates the chemicals in several brands of baby soaps cause false positives.

Learn More

Related Questions

  • Q:

    What is a mini lift?

    A:

    A mini face lift is a surgical procedure that lifts specific areas of the face rather than the entire face as is the case with a full face lift. During a mini face lift, the mid-face, lower eyelids and cheeks are lifted to improve facial aging, according to PlasticSurgery.com.

    Full Answer >
    Filed Under:
  • Q:

    What is ozone therapy?

    A:

    Ozone therapy is the use of ozone to treat certain illnesses such as heart attacks, Parkinson's disease, cancer, ulcers and macular degeneration, according to WebMD. Ozone therapy is a common practice in Europe.

    Full Answer >
    Filed Under:
  • Q:

    Can high blood pressure cause headaches?

    A:

    High blood pressure typically produces no discernable symptoms, reports WebMD. However, people who experience an extremely high blood pressure event, known as hypertensive crisis, may suffer a headache along with other symptoms, according to the American Heart Association.

    Full Answer >
    Filed Under:
  • Q:

    What are the symptoms of an infected wisdom tooth?

    A:

    According to the Better Health Channel, symptoms of an infected wisdom tooth are a reddened, inflamed gum near the wisdom tooth; pain; pus along the gum line; enlarged and sore lymph glands under the jaw, fever; and difficulty in swallowing and opening the mouth. An impacted wisdom tooth or food and bacteria between the wisdom tooth and molar can lead to gum infections and tooth decay.

    Full Answer >
    Filed Under:

Explore