What is the human chorionic gonadotropin pregnancy test?
Hormone naturally produced in women is hCG (human chorionic gonadotrophin.) HGC is produced in the cells that make up the placenta during pregnancy. It is this hormone that is detected in both blood and urine pregnancy tests.
Why do you keep getting invalid pregnancy test results?
A pregnancy test will show up invalid if not exposed with enough specimen for a long enough period of time. Try using a cup to collect specimen to ensure that the test is exposed sufficiently. Also, make sure the tests are within the expiration date.
Is it possible to be pregnant and get a negative urine test at the doctor?
Yes, you can still be pregnant with a negative reading on a pregnancy test. Factors include incorrect usage of an at-home test, taking the test soon after conception (before the pregnancy hormone has a chance to "register"), and certain drugs used while taking the test that alter the pregnancy hormone. If you are unsure about the results of a pregnancy test wait a few days and take the test again or go to your ob/gyn for a blood test.
Can Fluoxetine show a false positive in pregnancy tests?
The only medications that can cause a false positive on a home pregnancy test are those than contain hCG (the hormone the test is measuring) itself. If you are taking fertility medications with hCG - e.g. Novarel, Profasi, Pregnyl - please consult your doctor regarding appropriate times and circumstances for testing. Other fertility drugs and medications that do not contain hCG will not precipitate false positive results. Similarly, progesterone will not cause a false positive as well. I looked up that drug "Fluconazole" and I don't believe that it contains hCG since it is an antifungal drug and does not seem to have any hormones in it, but you can call your doctor to find out for sure.
Can you get negative blood test negative home pregnancy tests without period and still be pregnant?
there is a possibility just to be sure you should have another test.
But women can get irregular periods, its normal. It when you haven't had a period for 6 months that you should consult your doctor...
What does an inconclusive pregnancy blood test mean and could you still be pregnant?
A pregnancy blood test shows the level of the hormone HCG in the blood. There is quite a wide variation of normal in non-pregnant women so an early test may come into the 'high normal' range which would be 'inconclusive'. A second test a few days later showing a significant increase would be 'conclusive'. Peeing on a stick is much cheaper and just as accurate, and you are the first to know the result.
Can marijuana give false positive pregnancy tests?
It shouldn't THC (the psychoactive chemical in marijuana) works by mimicking neurotransmitters in your brain. It is broken down into metabolites and remains in the blood for days to weeks, depending how often marijuana is used. Home pregnancy tests test for human chorionic gonadotropin, which is a hormone released once implantation of the egg occurs. I see no reason as to why THC metabolites would affect a pregnancy test. Pregnancy tests have also been known to give false positives too, so taking two is always a good idea.
What do you do if pregnancy tests give different results?
Usually different results from pregnancy tests come from using the test too early. Taking the test too soon will cause a test to read a false negative. Some HPT are more sensitive than others, they will read positive sooner than a less sensitive test. False negative results are very common from using the test too early, false positive is almost unheard of unless the test kit was damaged somehow. Always check the kit before using it, including the expiration date and follow directions.
You should go to your doctor and ask for a blood test to see if you are pregnant or not. Maybe you are pregnant and your hcg is low that's why the hpt tells you negative results.
Half a line in a pregnancy test means?
that you need to take another test or your half way pregnant take your pick.
How can you misread a pregnancy test?
The only way you can do this is either 1) buy the cheapest pregnancy test you can find at least 3 of those and one of them should come out positive if you pee on it...2) get an actual pregnant friend to pee on it for you...
Can narcotics give you a false negative pregnancy test?
No. I was wondering the same thing and did research on it. My period is two and a half months late and urine and blood negative. I am sitting in dr. Office right now...trying to figure out what's up. I read if pregnancy hormone is high in system due to twins, the tests could come back negative.
Can a bladder infection give you a false negative on a pregnancy test?
No, UTI or bladder infection cannot give positive pregnancy test results. The positivity of a pregnancy test is due to a reaction involving hCG, human chorionic gonadotropic hormone that is present in the urine and an antibody with indicator coated test strip. If the woman is pregnant, then hCG will be present. If she is not pregnant, hCG will not be prestent.
Will a tubal pregnancy give a false pregnancy test result?
Lis@
Is it possible to get a false positive when you take a pregnancy test at a clinic or hospital?
Yes, both false positives and negatives can happen at reliable clinics. Sometimes the reagents used for the test may be old, improperly stored or handled, causing the problem. On the other hand, home pregnancy tests are notoriously inaccurate.
Anything is possible; however, they're usually always right. Sometimes home tests may not be able to detect the pregnancy hormone. If you are pregnant, congratulations, and be very happy!
How often should you take a pregnancy test after getting a negative?
If you have a negative pregnancy test and you feel that you still could be pregnant you should wait 24-48 hours then test again. Home pregnancy tests are most reliable when used 14-16 days after ovulation and when used with the first urine of the day.
Why would you have a false positive pregnancy test?
On rare occasions you can encounter a false positive due to improper testing, expired pregnancy tests, rare medical conditions such as certain types of cancer, evaporation lines or a chemical pregnancy.To ensure the best results: * Take the test in the morning, if possible, because your hCG (pregnancy hormone) levels are at it's highest * Don't drink a bunch of fluids before taking the test because it will dilute your urine and can affect the results * Take the test no more than 1-2 days before expected period. Although some test say that you can see results up to 5 days before your missed period, the percentage of accuracy is very low. * urinate for as long as possible on the foam-like strip * wait for the results! Here is a link to a website that will calculate the probability of your pregnancy: http://www.thepregnancytest.com/
Does a pregnancy test read negative when you have a ectopic pregnancy?
an ectopic pregnancy has the same symptoms and signs as a regular pregnancy and you still develop the hormones you would with a normal pregnancy. The human chorionic gonadotropin levels are what cause the pregnancy test to read positive. All pregnancies have hcg levels that should be doubling every other day in early gestation.. an ectopic pregnancy may test negative if taken too early, or too late because the body will eventually,(around 6-11 weeks) begin to try to expel the pregnancy when hormone levels begin to drop when the fetus is no longer viable and must be removed
Hope it helps!
What levels of HCG can home pregnancy tests detect?
All pregnancy tests are designed a little differently and a positive result may come from a high or low level of HCG, it really depends on the manufacturer of the test. When they make the test, they determine what amounts of that hormone need to be detected to produce a positive result. Check the manufacturer's instructions.
Is it possible to be pregnant and have low hcg levels that it doesnt show on a pregnancy test?
No. You will have HCG levels in your system if you are pregnant. If you are very early on, it could show negative, you don't start producing HCG until the baby is implanted.
Is 3 weeks too early for a pregnant test?
Not likely.. cos ovum which means women' egg cell will pass through the fallopian tubes in few days time.. When the sperm or male worm cells was ejaculated into the vagina, it takes couple of hours to reach the egg for fertilize process.. Sperm can live at least 3 days in womens' body.. This means pregnancy will take earlier o after the period.. This has to depend on the sperm n egg cell.. U will notice u r pregnant maybe after a week or maybe months to tell..
False negative pregnancy test?
False negatives are much more common than false positives. The commonest reason is that the test is taken too early. It takes 6-10 days after fertilisation for the embryo to implant and start producing hormones so you are unlikely to have built up a sufficient hormone level to test positive until around the time of a missed period. The other reason is if the test is not taken with the first (and strongest) urine of the day, the hormone in the urine is too diluted to register on a test.
Is it possible that a blood test could be a false negative if taken too early?
Yes, you have to give the hormones time to build up
Yes it can. My advice to you is if you feel that you really are pregnant, buy several test, and if they are all negative and you STILL think you're are pregnant, go to the Dr. and get him to test you.