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I read that ibuprofen can cause a positive test for marijuana. Is this right?

answers
one time there were concerns that ibuprofen may, in some cases, cause a "false positive" test result for marijuana. The issue of cross-reactivity between non-steroidal anti-inflammatory drugs and marijuana is generally resolved in the scientific community. Marijuana metabolites are stored in the body's fat cells. "Chronic" users may test positive for several weeks after stopping use of marijuana. "Casual" users may test positive for one to three days from the day of last use.
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Can secondhand marijuana smoke or poppy seeds cause a positive test?

National Drug-Free Workplace Alliance
Laboratories utilize conservative cutoff levels when conducting drug tests. Under normal circumstances, a person would not consume enough marijuana from secondhand smoke or eat enough poppy seeds to to reach these cutoff levels to trigger a positive drug test.
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What about "all-natural" supplements; can they cause a positive test?

USATF - Anti-Doping - Frequently Asked Questions
Yes. Some substance that are banned are also derived from plants and are therefore consider natural. There is no guarantee that there are not ingredients in the product that are not listed on the package. It is important to remember that the use of ALL nutritional products is completely at your own risk. This information is intended to be a general overview of drug testing issues. Please obtain all the original documents and information regarding drug testing and read them thoroughly.
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Will exposure to passive marijuana smoke result in a positive marijuana test?

Newsletter : AlcoPro
Perhaps the most common excuse subjects give to explain their positive marijuana test might be, "I was around some people who were smoking pot." Research has shown, however, that casual exposure to marijuana smoke will not produce a positive test. A person really has to work at being exposed to "passive" smoke to create a positive test.
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Will exposure to passive marijuana second hand smoke result in a positive marijuana test?

Frequently Asked Questions Drug Test FAQ
The most common excuse for a positive marijuana test is, "I was around some people who were smoking pot." Research has shownthat casual exposure to marijuana smoke will not produce a positive test. A person really has to work at being exposed to "passive" smoke to create a positive test. Very close confinement, without ventilation, with several smokers, for a period of over an hour, may result in a low, but measurable amount of marijuana in urine and blood.
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If an ovulation predictor test kit says positive, that means that I am for sure ovulating, right?

Ovulation Frequently Asked Questions : American Pregnancy As...
Ovulation predictor kits determine whether the luteinizing hormone (LH) is detected. The luteinizing hormone (LH) rises right before ovulation occurs. Therefore the kits are supposed to detect whether you're going to ovulate but cannot ensure that you do ovulate. Women may have a high level of the LH if they have certain conditions such as polycystic ovaries, premature ovarian failure (POF), or for women over age 40 who are experiencing perimenopause.
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Can too much caffeine cause a positive test?

Cool Running :: When is it cheating?
Yes. Caffeine, though a commonly used substance in our society, is a stimulant and has similar effects to those of other stimulant substances. In the past, athletes have attempted to improve their performances by using large[???] amounts of caffeine. This is considered cheating and its use is limited. Many products contain caffeine, including coffee, soft drinks, chocolate, and medications such as No Doz, Vivarin, Midol, Anacin, Excedrin, and Fiorinal.
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Is it possible to test positive for THC (Marijuana / Cannabis) from exposure to second hand smoke?

Frequently Asked Questions Drug Test FAQ
It is not! Urine concentrations of THC above the cut-off sensitivity level of the test, or a positive result, is possible only through use / inhalation. However, second hand smoke will be in the system, but not at the concentrations that would indicate drug abuse. No - the results are not affected by these substances. Urine drug tests are substance and derivative metabolite specific.
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Is it possible to test positive for THC (marijuana) from exposure to second hand smoke?

FAQ - Drug Test coza
Absolutely Not! Urine concentrations of THC above the cut-off sensitivity level of the test, or a positive result, is not possible by exposure to second hand smoke. No. Our tests are drug and drug metabolite specific.These commonly taken substances are chemically and structurally different after being metabolized by the body from the drugs being tested for and therefore, under most circumstances, not interfere with or compromise test results.
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What do I do if I test positive?

FAQ
Follow through with your medical providers instructions including taking all medicine and abstaining from sex for the specified amount of time. It is also very important that your sex and/or needle sharing partners are informed of the contact and receive testing and any treatment that are needed.
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New Page 1
It is of the utmost importance to your life that you seek out a doctor qualified to treat this disease. Your doctor will guide you to counseling, support groups and assistance services specifically for people that are HIV positive. You should also discuss the necessary changes to your life-style so as to not further endanger yourself and others. Your life is not over. You can live a longer, more fruitful life if you seek and receive treatment early in the disease process.
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What is a positive test?

Tilt Table Test: Frequently Asked Questions
A tilt table test is called positive if a patient develops a drop in blood pressure associated with symptoms. The symptoms that patients experience are varied and have included lightheadedness, nausea, a cold and clammy feeling, sweating, a "spacey" feeling, or a feeling like you are about to black out. Rarely, blood pressure falls without the patient developing symptoms. In these cases, we try to continue the test until the patient develops symptoms.
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What if I test positive for an illegal substance?

Frequently Asked Questions
Testing positive for drug use is a violation of conditions of release and as such, a violation would be submitted to the Court which could result in revocation of release.
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What if I test HIV positive?

American Social Health Association - Learn about STDs/STIs
There are many things you can do to help protect your health if you test positive for HIV. Seeking health care early and maintaining a healthy lifestyle can help a person stay healthy. Some specific things you can do if you're positive for HIV are: See a doctor, even if you feel well. If possible, see a doctor who is familiar with treating people with HIV. Health care providers can inform you on what tests and drug treatment are right for you.
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What if I test positive for HIV?

HIV Frequently Asked Questions - Southern Nevada Health Dist...
If you test positive for HIV, the sooner you take steps to protect your health, the better. Early medical treatment and a healthy lifestyle can help you stay well. Prompt medical care may delay the onset of AIDS and prevent some life-threatening conditions. The Health District Office of AIDS offers an Adult Evaluation Clinic at the Ravenholt Public Health Center.
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Will "passive inhalation" of marijuana smoke cause a postive urine drug test?

Aegis Sciences Corporation - FAQ
No. Scientific studies have tested non-smoking individuals under conditions where other individuals are heavily smoking Marijuana, and have determined non-smokers will not normally test positive. Other studies haved used extreme conditions that have required study individuals use goggles to protect their eyes from the harsh Marijuana smoke; such unusual conditions have resulted in very low test results.
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I am concerned about my child smoking marijuana. Can I get a drug test done?

Green Bay - FAQ
Drug testing should be conducted by a professional counselor, in conjunction with a chemical dependency assessment.
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If the test band is faint, is the pregnancy test positive?

Early Pregnancy Tests and Ovulation Predictor Kits: FAQ
A positive result will always be indicated by the presence of a distinct color band in the 'test' region of the pregnancy test strip or midstream test (accompanied by the presence of the 'control' band). If the test is faint (in comparison to the control band), the test may be positive, though the presence of hCG in the woman's body - or urine sample - may be low. The presence of hCG doubles every two days in a pregnant woman.
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Will Dilantin or Phenobarbital cause a positive test for barbiturates?

NTS: Resource Center
Phenobarbital is a barbiturate and will cause a positive test result for barbiturates. Phenytoin (Dilantin) is not a barbiturate; however a metabolite, p-hydroxyphenytoin has minimal cross reactivity on the initial screening test. There is no interference on the confirmatory GC/MS test, therefore, Dilantin (Phenytoin) has no effect on the eventual result for barbiturates.
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Can prescription drugs cause a positive urine drug test result?

Patient FAQ : Concentra Inc.
Yes, depending on the prescription medication. However, drug tests are typically conducted to determine recent use of an illegal drug, or misuse of a prescription drug. Results will be evaluated with respect to proper use of valid prescription medications that could be the cause of a non-negative drug test. If you use/used a valid prescription for the drug, the employer or their designated Medical Review Officer may evaluate this before declaring your results as non-negative.
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What is marijuana?

FAQ's - NORML
Marijuana is the third most popular recreational drug in America (behind only alcohol and tobacco), and has been used by nearly 80 million Americans. According to government surveys, some 20 million Americans have smoked marijuana in the past year, and more than 11 million do so regularly despite harsh laws against its use. Our public policies should reflect this reality, not deny it. See About Marijuana.
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Can you get a false positive hepatitis C test result?

AIDS Action Committee of Massachusetts:
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.
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When I get a positive on an ovulation test, when is the best time to have intercourse?

Early Pregnancy Tests and Ovulation Predictor Kits: FAQ
To increase the chance of conception, it is best to have intercourse the day of the LH surge as well as following three days after. A faint line (or a faint positive test band) does not indicate a positive result for an LH surge. While the presence of a faint line on a pregnancy test may indicate a positive result, a faint line on an OPK is always negative. Please refer to the images on our instruction pages to interpret results.
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