Blood Pregnancy Test
You are now several days post ovulation and you suspect that this might be the cycle that you conceived! The next question that you might ask yourself is: should I run to the doctor for a Blood pregnancy test or should I take a home pregnancy test?
Like most questions related to fertility and pregnancy, there is no straightforward answer to this question. Both a blood pregnancy test and a home pregnancy test will identify the presence of the pregnancy hormone called human chorionic gonadotropin (hCG), and will determine if you are pregnant or not. So, to determine which test is right for you, you might want to consider convenience, expense, accuracy, and your fertility history.
There are actually two different types of blood pregnancy tests, also called pregnancy serum tests. One type, called a quantitative blood pregnancy test (or a beta hCG test), measures the exact amount of hCG in the blood, while a qualitative blood pregnancy test simply provides confirmation of the presence of hCG, and a “yes” or “no” answer for pregnancy. If the blood pregnancy test reveals that hCG is under 5 mIU/ml, then the test will be considered negative. If the level of hCG is determined to be between 5 and 25 mIU/ml, this is said to be an equivocal result, and another test should be performed in a few days to confirm pregnancy.
SIGN UP FOR OUR NEWSLETTER
As for home pregnancy tests, there are several types to choose from. All home pregnancy tests (HPT) detect the presence of hCG in urine, and come either in a test strip, midstream or digital format. With the test strip or midstream format, you will dip the strip in a urine sample or urinate directly on the stick, wait a few minutes, and watch for the appearance of a colored test line to appear, which indicates a positive result. A digital test will typically provide a definitive “no” or “yes” in words that appear on the digital display. Each unique HPT is calibrated to detect a specific level of hCG in the urine, such as 20 mIU/ml, 50 mIU/ml or 100 mIU/ml. More “sensitive” tests, those that are able to detect a lower amount of hCG, can provide an accurate result as early as 7-10 days post ovulation.
When deciding if you should use an HPT or have a blood pregnancy test done at the lab, here are a few items to consider:
- Convenience: While it is true that a quantitative blood test can confirm pregnancy a couple of days before an early detection HPT, a qualitative blood test that is set to detect 25 mIU/ml is no more sensitive than an early detection HPT. Many women find it more convenient to simply wait a day or two and take a pregnancy test in the privacy of their home. In addition, an HPT will typically produce results in just minutes. On the other hand, you might be on pins and needles for up to 48 hours while you wait for results from a blood pregnancy test.
- Expense: The out of pocket expense for a blood pregnancy test will vary depending on the clinic you choose and the type of insurance you have. You should expect to pay up to about $75 for this service. And, if the results are uncertain (hCG level between 5 mIU/ml and 25 mIU/ml), a retest will be required in a few days, which will in most cases incur an additional fee. On the other hand, you can purchase 10 early detection pregnancy test strips for about $10, which will allow you to test several days in a row if necessary.
- Accuracy: The most “accurate” pregnancy test is the quantitative blood pregnancy test, as it determines the exact amount of hCG in your blood. This will allow your doctor to make a very clear determination about whether or not you are pregnant or if a retest is required in a few more days. With both a qualitative blood test and an HPT it is possible to get a false negative result. This means that if the test is not sensitive enough to detect your current level of hCG (for example, your current level is 20 mIU and the test is set to detect hCG at 25 mIU), you will get a negative test result even though you are pregnant. If you get a negative result from an HPT or a qualitative blood test, and you continue to have any signs of pregnancy, we recommend retesting in a few days.
- Fertility history: If you have experienced a miscarriage or an ectopic pregnancy in the past, your doctor may well want to monitor your hCG levels closely in the first several weeks of pregnancy. In the early days of pregnancy, hCG levels double every 48-72 hours. (See the chart below for average blood hCG levels as pregnancy advances). If hCG levels do not rise appropriately in those very early days, it can signal a problem with the pregnancy. By monitoring your exact hCG levels with regular quantitative blood test, your doctor may be able to detect a problem early on. Neither a qualitative blood test nor an HPT allows this type of monitoring, as they do not reveal exact amounts of hCG, and cannot determine if levels are increasing appropriately.
The following is a list of blood hCG levels achieved as pregnancy advances (LMP means last menstrual period):
- 3 weeks since LMP: 5 – 50 mIU/ml
- 4 weeks since LMP: 5 – 426 mIU/ml
- 5 weeks since LMP: 18 – 7,340 mIU/ml
- 6 weeks since LMP: 1,080 – 56,500 mIU/ml
- 7 – 8 weeks since LMP: 7,650 – 229,000 mIU/ml
- 9 – 12 weeks since LMP: 25,700 – 288,000 mIU/ml
- 13 – 16 weeks since LMP: 13,300 – 254,000 mIU/ml
- 17 – 24 weeks since LMP: 4,060 – 165,400 mIU/ml
- 25 – 40 weeks since LMP: 3,640 – 117,000 mIU/ml
More Pregnancy Test Articles
Confirm Your Pregnancy Through Pregnancy Blood Test!
Having symptoms of pregnancy and suspecting that you are pregnant?
So, confirm your pregnancy through pregnancy blood test.
Even you can confirm your pregnancy through other tests such as urine test and ultrasound test.
By performing pregnancy blood test, you can determine whether you are pregnant or not.
It also helps measure the growth of the fetus and detects abnormal conditions (if any) if you are pregnant.
The Pregnancy blood test basically calculates the pregnancy hormone called human chorionic gonadotropin hormone (hCG), which will be produced by placenta and emerges into your blood and urine within ten days of your conception.
Pregnancy blood tests will provide most accurate results when performed after a missed menstrual period. If the result of the test is negative then repeat it after a week or two to confirm your pregnancy.
Remember that performing pregnancy blood test too early cannot detect pregnancy hormone and results in negative even if you are pregnant. Normally, the production of pregnancy hormone begins seven days after the fertilization takes place.
The most common pregnancy test is pregnancy urine test which can also be performed by you at home using a pregnancy test kit.
Pregnancy blood tests are of two types. One is qualitative pregnancy blood test and the other one is quantitative pregnancy blood test.
Qualitative pregnancy test is same as the urine test done by the pregnancy kit at home, which gives the results as either “yes or no.” It provides you whether hCG is present or not.
Quantitative pregnancy test measures the amount of hCG present in your blood, which will help to determine the age of fetus. It also helps to know the growth of your pregnancy.
Pregnancy blood tests are pricey and take long period for providing test results when compared to the urine tests. It is to be done in the presence of doctor whereas urine test can be done at home.
However, pregnancy blood tests have more advantages than urine tests. Pregnancy blood test can calculate the concentration of hCG hormone production in your blood, which the urine test cannot provide.
The pregnancy confirmation will be earlier than a urine test at a minimum of 7-12 days after fertilization.
For pregnancy test, the technician will draw blood from your vein after sterile preparation and application of tourniquet, which enlarges the vein that is targeted. A needle will be used to draw blood from your body.
The needle will be inserted into the vein to draw the blood into the syringe or vial. After taking blood, the fine needle will be removed and the site will be covered for safety.
Now, the blood sample will be sent to the laboratory to confirm the presence of hCG hormone in the blood.
The HCG hormone in your body increases if you are pregnant, and the pregnancy blood test results will be positive. The test results can be positive or negative. Positive result indicates that you are pregnant whereas negative result indicates that you are not pregnant.
Http://www. early-pregnancy-tests. com/blood-pregnancy-test
Http://www. thepregnancyzone. com/tests-and-procedures/confirm-your-pregnancy-through-pregnancy-blood-test/