How Accurate is a Blood Pregnancy Test?
A blood test for pregnancy tests for the HCG hormone which is only present in a woman's body when she is pregnant. The blood pregnancy test is 100% accurate today.
A blood pregnancy test is more accurate, but it really depend on the type and sensitivity of the test. The beta hCG blood test measures the exact units of hCG in the blood, and will detect even the most minimal level. The other type of blood test, qualitative hCG, simply gives a yes or no answer to whether you are pregnant, and triggered at 25 units of hCG.
Pregnancy test are only about 90 percent accurate. If the result comes out to be negative and you really think that you are pregnant you may still want to go to the doctor to make sure.
Get answers to common questions about home pregnancy tests. Taking a home pregnancy test can be nerve-racking, especially if you're not sure whether you can trust the results. Know when and how to take a home pregnancy test — as well as some of the possible pitfalls of home testing.
When should I take a home pregnancy test? Many home pregnancy tests claim to be accurate as early as the first day of a missed period — or even before. For the most reliable results, however, wait until one week after a missed period.
Shortly after a fertilized egg attaches to your uterine lining, the hormone human chorionic gonadotropin (HCG) begins production in the placenta and enters your bloodstream and urine. During early pregnancy, the HCG in your blood increases rapidly — often doubling every two to three days. Many home pregnancy tests can reliably detect this hormone in your urine one week after a missed period.
Days earlier, however, some home pregnancy tests might not be as precise. If it's important to confirm your pregnancy right away, ask your health care provider about a blood test to detect HCG. The blood test, which can be done in most health care providers' offices, is more sensitive than is the urine test.
Are there different types of home pregnancy tests? Various types of home pregnancy tests are available. With most tests, you place the end of a dipstick in your urine stream or immerse the dipstick in a container of collected urine for five to 10 seconds.
A few minutes later, the dipstick reveals the test result — often as a plus or minus sign, a line or lines, a color change, or the words "pregnant" or "not pregnant" on a strip or screen. Keep in mind that instructions might vary from kit to kit. Read the instructions carefully before you take the test.
If you have questions about how to take the test or interpret the results, contact the manufacturer. Look for a toll-free number or the manufacturer's website in the package instructions. How accurate are home pregnancy tests?
Many home pregnancy tests claim to be 99 percent accurate on the day you miss your period. Although research suggests that some home pregnancy tests don't consistently spot pregnancy this early, home pregnancy tests are considered reliable when used according to package instructions one week after a missed period. Symptoms of pregnancy: What happens right away Pregnancy due date calculator Ectopic pregnancy Birth control pills: Harmful in early pregnancy?
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How Accurate are Home Pregnancy Test?
How Accurate are Pregnancy Test?