what medications can cause a false positive pregnancy test

Dextromethorphan (Robitussin, Delsym) 2. Human errors also lead to a false positive test. During early pregnancy, the amount of HCG in blood and urine rises quickly doubling every WebWhat are other conditions that can cause a positive test for hCG aside from pregnancy? Menopause, ovarian cysts, and ectopic pregnancy are some rare medical conditions that can give misleading pregnancy test results. Several conditions may cause a false-positive pregnancy test. All the best, masso. These small black seeds naturally contain morphine and codeine. Trazodone, meta-chlorophenylpiperazine (an hallucinogenic drug and trazodone metabolite), and the hallucinogen trifluoromethylphenylpiperazine cross-react with the EMITII ecstasy immunoassay in urine. GoodRx works to make its website accessible to all, including those with disabilities. All rights reserved. WebHowever, fertility drugs are one exception. They include: If youre prescribed a controlled substance like opioids. A pregnancy test is done to determine if women are pregnant or not. Keep in mind that pregnancy test results are effective for a short while only. (2010). An untreated ectopic pregnancy can be a medical emergency. The content on Healthgrades does not provide medical advice. Yee, L.M., et al. Journal of the American Medical Association. a recent pregnancy (e.g. This can cause hCG levels to remain elevated, among other more worrisome symptoms such as ongoing bleeding or fever. Many women query about what medications can cause a false positive pregnancy test. It is rare but possible to have a false-positive pregnancy test. Other drugs that may cause a false positive pregnancy test include: 6 Antipsychotics often used to treat schizophrenia, such as perphenazine, prochlorperazine, chlorpromazine, trifluoperazine, thioridazine, and thiothixene The anti-seizure/anticonvulsant drug carbamazepine used for epilepsy, facial nerve pain, and bipolar disorder Diuretics (water pills) Antihistamines. A false positive result is possible with a rapid COVID-19 test. And then you later find out it was just a false positive. This hormone helps your body maintain the pregnancy. Find qualified telemedicine providers for a variety of symptoms and conditions. Almost all pregnancy tests are done by determining the amount of Human Chorionic Gonadotrophic (hCG) hormone in blood or urine. Sertraline can cause a positive result for the hallucinogen LSD on a urine drug test. Need a Telehealth Visit? The faulty test result could happen for several days after you quit your antidepressant. Casey, E.R., et al. The same thing could happen even with alcohol-based hand sanitizers if you use them regularly. GoodRx provides no warranty for any information. The following situations can cause a false pregnancy test (either positive or negative): testing too early, using the pregnancy test incorrectly, or being on certain medications or having certain medical conditions.. If you're experiencing cramping but don't get your period, you might be pregnant. Not cleaning the cup that comes with certain pregnancy test kits can also cause contamination of the urine sample and affect your results. How Many Days After Missed Period Pregnancy Test Is Positive. Investigation of interference by nonsteroidal anti-inflammatory drugs in urine tests for abused drugs. If you think your urine drug test results are inaccurate, talk to your healthcare provider. This beverage is a popular folk remedy in Peru and elsewhere in South America. Inaccurate hCG Levels. Methadone, given to treat heroin addiction, can cause a false positive result on urine pregnancy tests, Cigna states. Follow up with a blood test will give more accurate results. Mayo Clinic: Home Pregnancy Tests: Can You Trust the Results? If the urine is too diluted, it may not give an accurate response. Use of this website and any information contained herein is governed by the Healthgrades User Agreement. It can cause false positive results for amphetamine or methamphetamine. Journal of Analytical Toxicology. Various medications also interfere with the testing of pregnancy through pregnancy kits and may cause false-positive results. An ultrasound is generally needed to determine if an intrauterine pregnancy is identified, lost, or if there is a fetus without cardiac activity. (2010). It can be extremely upsetting to receive a false positive pregnancy test result, especially if youve had trouble getting pregnant or are actively trying to get pregnant (or both). Can You Measure hCG Levels in Your Urine? Read our. Healthgrades Can Help. Krista Elkins has 20 years of experience in healthcare as both a paramedic (NRP) and a registered nurse (RN). These five important signs will help you decide. Certain medications, such as those used in assisted reproductive technology and even some antidepressants, can cause a false positive reading, says Dr. Williams. Verywell Family uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Rifampin, which treats tuberculosis, might show up as opiates in some rapid urine screens. (2007). How Many Days Your Period Can Be Late For? Women unable to ovulate on their own are often prescribed a fertility medication such as Clomid (clomiphene citrate). Enter your email to sign up. Submission of this form is subject to Healthgrades, Help Millions of people find the right doctor and care they need, Get immediate care and visit with providers from the comfort of your home, or anywhere, Urgent care centers can be faster and cheaper for situations that are not life threatening, Doctors and patients discuss the latest medical treatments and health tips, Search prescription drugs for why theyre used, side effects and more, Back and Neck Surgery (Except Spinal Fusion), https://www.ncbi.nlm.nih.gov/books/NBK532950/, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6464743/, https://www.nhs.uk/pregnancy/trying-for-a-baby/doing-a-pregnancy-test/, https://www.ncbi.nlm.nih.gov/books/NBK459155/, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7117853/, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6135366/, https://www.ncbi.nlm.nih.gov/books/NBK539860/, https://www.womenshealth.gov/a-z-topics/pregnancy-tests. 11 /11. In this scenario, the pregnancy test gives accurate results. Many urine drug tests test for the following medications and substances: THC, or tetrahydrocannabinol, an active ingredient in cannabis, Prescription opiates and opioids like oxycodone (Roxicodone, Oxycontin), hydrocodone, and morphine (MS Contin), Illegal opiates and opioids (like heroin), Amphetamines (like prescription amphetamines like Adderall and illegal methamphetamine), Barbiturates (like phenobarbital, butalbital), Benzodiazepines like alprazolam (Xanax) and lorazepam (Ativan). In some cases, though, running a second test may not be possible. Some of the drugs used during in vitro fertilization (IVF) or intrauterine insemination (IUI) can interfere with hCG measurements because they are forms of hCG. But there are a few things you should avoid doing. It is not a substitute for professional medical advice, diagnosis or treatment. What Is a False Positive Pregnancy Test? Evaporation lines may also create confusion and lead to the assumption of a pregnancy that is not present. False-positive interferences of common urine drug screen immunoassays: A review. This can cause either a false negative or a false positive. HCG hormone is secreted by the placental cells after implantation of the fetus. Note:What medications can cause a false positive pregnancy test? Some sensitive tests may be accurate even before you miss a period. (2019). What medications can cause a false positive pregnancy test? When you have a migraine, you'd try anything to feel better. Drugs that contain the hCG hormone aimed at boosting fertility may impact pregnancy test results. What medications can cause a false positive pregnancy test? American Addiction Centers: Whats An Amphetamine? However, the chance is small. (2017). Diphenhydramine also may show up as PCP, an illegal hallucinogenic that is one of five types of drugs that applicants for all federal and many private-sector jobs are screened for. Some pregnancy tests detect hCG very early in pregnancy. 1. Its sometimes caused by a chemical pregnancy. Alcohol and illicit drugs also dont affect pregnancy test results. But chances are very low that youll have enough THC to trigger the positive result in the screens used by the federal government and many private employers. Quetiapine (Seroquel) is one type of atypical antipsychotic. Landy, G.L., et al. An ectopic pregnancy is a medical emergency. Although its rare to experience a false positive pregnancy test, certain factors can make it possible. Our experts continually monitor the health and wellness space, and we update our articles when new information becomes available. Similarly, other medications like antidepressants and birth control can cause a false positive pregnancy test. This can happen for many reasons. Interpreting Faint Lines on a Pregnancy Test. It may also cause a positive result for benzodiazepines. You already know the answer, but you should also know that many other factors can also affect your pregnancy result. Proton pump inhibitors (PPIs) can treat gastroesophageal reflux disease (GERD) and heartburn symptoms. One of the most common mistakes is taking the test too early during your cycle. Sometimes you may have a fertilized egg that has not attached to the uterus lining. Sometimes a fertilized egg can implant itself outside of the main cavity of the uterus, which causes an ectopic pregnancy. You may get a false positive result when using at-home pregnancy tests. Even if your period is late according to your typical cycle, you might have ovulated later in the month. Another NSAID, oxaprozin (Daypro), can be used to treat pain from arthritis. It also discusses which tests are more accurate and how early you can take them. If you get a positive result you can almost certainly assume you are pregnant, at which point you should visit your GP to Rheumatoid Arthritis and Pregnancy: What You Need to Know, scar tissue or inflammation in the fallopian tube, misshapen fallopian tube or other congenital anomalies, a history of infertility treatments such as in vitro fertilization (IVF), sharp waves of pain in the abdomen, pelvis, shoulder, or neck, light to heavy vaginal spotting or bleeding, antipsychotics, such as clozapine or chlorpromazine, anticonvulsants, like phenobarbital or other barbiturates, Parkinsons disease medications, including. Certain fertility treatment medications may cause a false-positive pregnancy test. Some causes of chemical pregnancies are unknown. Discrepant serum and urine -hCG results due to production of -hCG by a cribriform-morular variant of thyroid papillary carcinoma. (2017). If you've taken a pregnancy test and believe that a negative result is wrong, the best thing to do is wait for at least two days and test again. By signing up, I agree to GoodRx's Terms and Privacy Policy, and to receive marketing messages from GoodRx. It's important to care for your own needs while you're attending to those of your family. There are a few things that can cause a false negative reading, namely the improper use of the test, testing too early, using an expired test, or diluting the urine by drinking too much water in advance. Urine drug tests: Ordering and interpretation. Methadone. The embryo isnt viable because theres no place for it to grow or thrive outside of the uterus. Urinary Tract Infection | False-Positive Pregnancy Test: 7 Possible Ca Some reports have also shown that diphenhydramine may turn a drug test positive for PCP. Seek immediate medical help if you suspect you have an ectopic pregnancy. Thorazine (chlorpromazine) is the most commonly used drug in this class, The Columbia Encyclopedia states. Please seek medical advice before starting, changing or terminating any medical treatment. By Robin Elise Weiss, PhD, MPH Thats the chemical in the cannabis plant that gets you high. Answers. Cherwinski, K., et al. It is intended for informational purposes only. Most at-home pregnancy tests are dipsticks that are placed in a urine stream. While the blood test also detects hCG, it is far more accurate than a home urine-based test. Third Party materials included herein protected under copyright law. If youve been looking forward to a positive pregnancy test result, a false-positive is disappointing. 10 Common Questions About Labor and Delivery. What is a chemical pregnancy? Following are the medications that may lead to a false positive pregnancy test; Anti-psychotics, anti-convulsant, and anti-anxiety medications may cause a false positive test. Several of these medications for mental disorders can lead to false positive tests. Certain infertility medications and medical conditions can cause hCG levels to rise in your body and give you a false-positive pregnancy test. Leaving the dipstick in your urine stream for the exact amount of time allotted is also important. Although its not common, certain medications can cause a false-positive pregnancy result. The level of hCG hormone will be higher and easier to detect. https://americanpregnancy.org/getting-pregnant/fertility-medications/, https://medlineplus.gov/druginfo/meds/a682165.html, https://medlineplus.gov/druginfo/meds/a682116.html, https://medlineplus.gov/druginfo/meds/a682040.html, https://medlineplus.gov/druginfo/meds/a682121.html, https://medlineplus.gov/druginfo/meds/a682119.html, https://medlineplus.gov/druginfo/meds/a682867.html, https://medlineplus.gov/druginfo/meds/a682237.html, https://medlineplus.gov/ency/article/003432.htm, https://medlineplus.gov/druginfo/meds/a682284.html, https://www.womenshealth.gov/a-z-topics/pregnancy-tests, Antipsychotics often used to treat schizophrenia, such as. A recent miscarriage or abortion, certain medications, and several other conditions may cause a false-positive result. Remember that false positives do happen and are not an indication that you cannot become pregnant in the future. Pregnancy test kits detect human chorionic gonadotropin (hCG), a hormone that starts to rise when a sperm fertilizes an egg. Ectopic pregnancies usually happen if a fertilized egg gets stuck in a fallopian tube during its journey to the uterus. Archives of Pathology & Laboratory Medicine. Some at-home tests show two lines when hCG is detected and one line when hCG isnt detected. But more often, certain medications are the cause of a false positive result. British Journal of Psychiatry. Baron, J.M., et al. Some medications can cause a false positive pregnancy test result. An ectopic pregnancy is a serious medical emergency and must be addressed immediately. If the pregnancy test detects a certain level of hCG, it will show a positive result. If you are pregnant and you wait another two days before testing again, the levels should double again, increasing your chance of an accurate reading. These eggs then pass during your menstrual cycle. This hormone stimulates the production of progesterone which plays an important role in maintaining pregnancy. A drug test can detect the presence of certain medications and substances. Its important to follow package directions exactly. How medications affect pregnancy test results. Last Updated 01 May, 2023. These results are due to the high amount of white blood cells, red blood cells, and nitrates in your urine. At-home pregnancy tests arent foolproof. Ibuprofen (Motrin, Advil) and naproxen (Aleve, Naprosyn) are in a group of medications called nonsteroidal anti-inflammatory medications (NSAIDs). Your drug screen could become positive for methadone or PCP with large doses of tramadol. If you get a positive result you can almost certainly assume you are pregnant, at which point you should visit your GP to confirm the news, and then you can spend the next nine or so months cooking your human child (psst: read up on which celebs are currently expecting).pregnant, at which Healthline Media does not provide medical advice, diagnosis, or treatment. This is called a false positive. Learn about the rare reasons for a false-positive pregnancy test. It takes almost one to one-and-a-half months to have a normal level of hCG. This is due to the residual level of hCG present in the woman. WebWhat are other conditions that can cause a positive test for hCG aside from pregnancy? Memory usage: 65600.0KB. A chemical pregnancy occurs if a fertilized egg, known as the embryo, is unable to implant, or grow, very early on. American Society for Reproductive Medicine. However, keep in mind that the earlier you take the test, the harder it is for the test to detect hCG. What are the telltale early symptoms of pregnancy? There are also certain medications taken for infertility that cause elevated hCG without a pregnancy. Purpose: The implications of potential false-positive urine drug screen (UDS) results for patients receiving commonly prescribed medications were evaluated. The lines are usually a bright color, such as pink, red, or blue. This embryo will continue to produce hCG as long as it is in your body, but it will not develop into a fetus. Management of nonpregnant women with elevated human chorionic gonadotropin. They are thought to be very common, but they typically go undetected if a pregnancy test isnt taken. (2014). If you think you may have a medical emergency, immediately call your doctor or dial 911. They may be able to perform a second test thats more specific and accurate. Drugs.com provides accurate and independent information on more than 24,000 prescription drugs, over-the-counter medicines and natural products. 589. Rapid fluctuations in body weight (either loss or gain) Eating disorders. This is a rare one, but some medical conditions such as certain kinds of cancer, chronic Giving birth is as individual as you are, so here are some answers to help set the record straight. Consider setting a timer on a stopwatch or your phone. During pregnancy, the hCG levels continue to rise, in general doubling every few days, and peaking at around 10 weeks. Neurological Drugs Anti-psychotics, anti-convulsant, and anti-anxiety medications
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