Could hyperthyroidism cause a false negative on a pregnancy test?

Answer 1

No. There is almost nothing that can cause a false positive pregnancy test, and all of the causes require an urgent visit to a health care provider.

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Malfunctioning thyroids can't; they don't produce the correct hormones to trigger a pregnancy test. But to swear nothing can cause a false positive is irresponsible and false in it's own right. I've been the victim of a false positive test. Always be sure to test in the morning when urine is more concentrated. It's also best to avoid drinking a ton of water before testing, or after to try and test again. This can mess with the test and give false results.

1. False positive pregnancy test due to improper testing...

Improper testing can lead to false positive results. Always follow the directions! Instructions will specify when test results are no longer valid. You should time and record the time you perform the test, and read results at the instructed time. Guessing can lead to false results. "Double checking" your results often leads to false positives. Fishing your test out of the garbage after too much time has passed can change the initial results.

2. Evaporation line on a pregnancy test...

With some tests you can see where the testing line is. When urine runs across the test strip it can briefly change the color. Some tests allow you to see what can best be described as a watermark; kind of like what you see on US paper currency. If there is no color or you have to really mess with it in the light to see a line; it could be an evaporation line. Try retesting in a few days or using a digital test is recommended.

3. False positive pregnancy tests can be caused by certain medications...

Sometimes urine can be contaminated with blood or large amounts of protein, which can lead to false positive results.

4. Certain medical conditions can lead to false positive test results...

If you receive a positive result from a home pregnancy test it is important to see your doctor. It's is not common, rare medical conditions can cause false positive results on home pregnancy tests. Certain cancers, can cause higher levels of hCG levels.

5. Defective pregnancy tests...

Expired or faulty tests can also lead to false positive results. Remember, an occasional defective test may come out of a batch.

If you're unsure about the results of your home pregnancy test, ALWAYS consult your doctor.

Answer 2

One AnswerA blood test is the most accurate way of determining pregnancy. The only thing that will cause a false positive blood test is a chemical pregnancy, etopic pregnancy or medication containing HCG. Have a repeat blood test. Another AnswerFalse positive for what? For hepatitis, HIV, alcohol no probably not. For tests of hormones levels, maybe. Really depends on what is being tested.

Answer 3

Home pregnancy tests Human Chorionic Gonadotropin (hCG) pregnancy tests or home pregnancy tests determine pregnancy through the detection of the hormone Human Chorionic Gonadotropin (hCG) in a woman's urine. Doctors recommend that you wait until you have missed a period to take a home pregnancy test. If you can not wait that long to find out and you know the day you may have conceived, then the earliest you can take a test would be 14 days from possible conception. Home tests are usually 97% accurate when all instructions are followed correctly and the results are read on time. Some kits come with two tests so that in case you have made a mistake, you may take the home pregnancy tests gain. Learn more about the accuracy of home pregnancy tests in another relevant article. False negative pregnancy tests and what causes themIf you take a home pregnancy test too early, you may get a false negative result. A false negative result is when the test says you are not pregnant but you are. This can be misleading and when using home pregnancy tests you must be very careful of avoiding any factors that may cause false results. There could be various reasons for a false negative test. Early Detection AttemptOne reason for a false negative pregnancy test could be that you took the test too early. Pregnancy tests vary in their sensitivity which means how soon they can detect the hormone Human Chorionic Gonadotropin (hCG) in your urine. It is possible that although your ovum might be fertilized, meaning you may be pregnant, but your body has not started secreting enough Human Chorionic Gonadotropin (hCG) for the test to measure. Your body needs time for the hormone to rise to a high enough level to be detected in a test. Erratic Technique There is a possibility that while using the home pregnancy test strip you either did not dip it well or did not hold it well in your urine stream. This error in technique may give false negative results. Missed Reaction Time For accuracy in home pregnancy tests it is essential that you read the test results in the stipulated reaction time. If you let the test sit for too long (after the instructions on the box tell you), the test is invalid. This may cause it to show false negative results.If the home pregnancy test shows negative results but you still think you could be pregnant, wait a few days and try again. A negative result can mean that you are not pregnant, you took the test too early or you took the test wrong. Also, if you have received different answers on multiple pregnancy tests, it is recommended that you get a blood test done to get an accurate answer.
The problem with hypothyroidism and pregnancy is that if you do not take your supplement it will affect the baby's intellegence according to a search I did on medline. I could not find that TSH T3 or T4 affect pregnancy tests. Good luck Joymaker rn

Answer 4

No, pregnancy tests are specifically looking for hCG. A false positive is almost unheard of, a false negative usually happens when testing too soon - but neither are caused by levothyroxin.

Answer 5

Undiagnosed or unmonitored thyroid conditions (hyperthyroidism, hypothyroidism, Hashimoto's Thyroiditis) can cause an increased frequency in miscarriages.

Answer 6

No- it should not interfere