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What can cause a positive pregnancy blood test?

What can cause a positive pregnancy blood test?

In very rare cases, you can have a false-positive result. This means you’re not pregnant but the test says you are. You could have a false-positive result if you have blood or protein in your pee. Certain drugs, such as tranquilizers, anticonvulsants, hypnotics, and fertility drugs, could cause false-positive results.

How accurate is a positive blood pregnancy test?

Blood test results are about 99 per cent accurate and can detect lower amounts of hCG than urine pregnancy tests. The two main types of blood pregnancy test include: Quantitative blood test – measures the exact amount of hCG in the blood and can give you an estimate of how far along the pregnancy has progressed.

Is it possible to have a positive blood test and not be pregnant?

Chemical pregnancy It’s possible to have a positive pregnancy test even if you aren’t technically pregnant. This is called a false positive. It’s sometimes caused by a chemical pregnancy. A chemical pregnancy occurs if a fertilized egg, known as the embryo, is unable to implant, or grow, very early on.

What happens after positive pregnancy blood test?

If you get a positive pregnancy test result, call your healthcare provider. They’ll likely schedule an appointment eight weeks in where they’ll confirm the pregnancy and its location via ultrasound, as well as run other important tests and screenings.

Will a pregnancy test be negative if you miscarry?

A pregnancy test may still be positive soon after a miscarriage because the pregnancy hormone (hCG) level has not decreased enough to make a pregnancy test negative.

Do you have hCG in your blood if you are not pregnant?

Many people have very low levels of HCG in their blood and urine when they are not pregnant. HCG tests detect elevated levels. Some tests may not detect pregnancy until HCG has risen to a certain level. Tests that can detect lower levels of HCG may diagnose pregnancy earlier.

How soon can blood test reveal pregnancy?

Blood tests They can pick up hCG earlier in a pregnancy than urine tests can. Blood tests can tell if you are pregnant about six to eight days after you ovulate. Doctors use two types of blood tests to check for pregnancy: Quantitative blood test (or the beta hCG test) measures the exact amount of hCG in your blood.