Doctor insights on:
Timing: It is possible that the urine pregnancy test detected HCG that was in the urine even as a pregnancy was failing (impending miscarriage) but by the time a blood test was done, the miscarriage had already occurred and the levels of the HCG pregnancy hormone were cleared. Alternatively, it could have just been a false (+) urine pregnancy test. ...Read more
Can pregnancy blood test give false negative. 3 days late, urine test negative and blood test negative too?
Work up needed: At the very least it may suggest that you have been exposed to tuberculosis. You should visit with your doctor to have questions asked about whether or not you have TB symptoms to suggest infection such as do you have a cough? Unexplained night sweats? Unexplained weight loss, fevers or chills and fatigue? You also need to have a chest x ray performed - since organism is usually inhaled. ...Read moreSee 1 more doctor answer
I took 7 home pregnancy test all positive but doctor test say negative and blood test was negative why?
Please clarify: Perhaps the reason can be known when you tell us honestly why you kept testing at home even though the test told you a positive answer. Something must have clued you into the fact something was not normal. You tell us. ...Read more
Home pregnancy test was positive but blood hCG came back negative. Ob perform a blood test again. Hcg 750 progesterone 21. Why first hCG was negative?
Lab error: Presuming the first blood pregnancy test was close to the second, one of them had to be a lab error, probably the first one that was negative. If there is any question about the health of the pregnancy, your doctor can follow the bhcg level to see if it is rising appropriately and obtain an ultrasound when the level is high enough.For more info www.Askyourgynecologist.Org. ...Read more
Faint positive hpt w/ first morn urine, neg dr. Urine test later that day, blood test came back post. Why was drs urine test neg? Early testing?
Pregnancy tests: Blood tests are more sensitive than urine tests, especially in early pregnancy. First morning urine is usually more concentrated than urine produced later in the day. Eating and drinking can dilute the urine enough to cause a false-negative result. That is why the blood test is done for confirmation. ...Read moreSee 2 more doctor answers
3 days late 2posative clear blue digital test 1negative cheap test a negative doctor test. Am i pregnant?
If doubt then : There is not a way that we can tell you if you are pregnant if you have done one test that is positive and one that is negative. We would simply be guessing which test is correct. In this case you will need to see a doctor for a blood bhcg test. ...Read more
5days late now 2 expensive test came positive 2 cheap test was negative. Doctor urine test negative. Am i pregnant? Please need help.
Thank you: Thank you for letting us know. The question, i assume, since you did not ask one is can you be pregnant.? And it appears that you are not pregnant. Or you were pregnant but it died or was not viable. ...Read more
Possibly.: These tests are good, but like all tests, can have variations. Blood tests can detect this shortly after implantation as well as urine tests that are sensitive, but less sensitive blood and urine tests need 3-4 more days to become positive. No two people are alike either, so that can cause variations also. Time and a specific quantitative test can best confirm this, so see your dr. To be sure. ...Read moreSee 1 more doctor answer
5 reasons: There are several reasons why a woman may obtain a positive result on an a home pregnancy test when she is not actually pregnant. 1. False positive pregnancy test due to improper testing. 2. Evaporation line on a pregnancy test. 3. Certain medical conditions can lead to false positive test results. 4.False positive pregnancy tests can be caused by certain medicine 5. Defective pregnancy tests. ...Read more
A test: for a certain autoimmune condition. it's important to understand that these blood tests need to be interpreted carefully in the context of your symptoms and exam findings. a positive test doesn't necessarily mean you have the condition. ...Read more