How long pregnancy blood test

The lab should tell the person how long it could take to receive results back. For instance, a person may not receive their results if the doctor did not collect enough blood or if the blood sample became contaminated. A doctor may reorder the test if the sample is inadequate for any reason.

The following are some potential reasons a doctor may order a blood test and how long a person can expect to wait before getting the results back. A basic metabolic panel is one of the most common blood tests. In preparation for the test, a doctor may instruct a person to fast for up to 12 hours before the test. The complete blood count CBC indicates the white blood cell count, the red blood cell count, and hemoglobin levels. There is no need to fast before a CBC.

A lipid panel measures the amount of cholesterol in the blood. Most adults will need to fast water only for 9 to 12 hours before the blood test. However, children and young adults can eat as normal.

A complete metabolic panel includes tests that measure levels of albumin, total protein, glucose, calcium , and common electrolytes included in the basic metabolic panel. The results of a complete metabolic panel can take a few days to come back. A person will need to fast for 12 hours before having this blood test. Urine tests are the most common methods for detecting pregnancy and give results within minutes. Some people choose to have a blood test, which tends to be more accurate than a urine test.

However, people have to wait longer for blood test results. There are two types of blood tests for pregnancy: qualitative and quantitative. A qualitative test gives a simple yes or no answer to whether a person is pregnant. A quantitative test returns the total amount of human chorionic gonadotropin hCG in the blood. The body produces this hormone when someone becomes pregnant. Some blood tests can detect whether a person is pregnant as soon as 1 week after conception.

A person needs to be pregnant for longer before a urine test can identify a pregnancy accurately. How long a pregnancy test result takes to come back depends on the location of the lab. Blood pregnancy tests are more sensitive than urine tests.

They are typically reserved for those struggling with infertility or a suspected miscarriage. A blood test can confirm pregnancy as early as nine days after conception.

Urine pregnancy tests will take at least 10 days or longer. Blood pregnancy tests have to be taken at the doctor's office. Your doctor might advise you to wait until a missed period to do any type of pregnancy testing so you can get the most accurate result. Testing too early can produce a false negative. Unlike home pregnancy tests, you'll have to wait for a blood pregnancy test result to come back from the lab. There are two types of blood pregnancy tests:. HCG doubles every couple of days in the very early stages of pregnancy.

Urine tests can produce a false negative if the urine is diluted from over-hydration or the test is taken too early. A false negative test is negative, but you're pregnant can occur if the blood pregnancy test was performed too early. There may not be enough hCG in the blood to detect a pregnancy. Beyond testing too early, a false negative blood test can occur if there is a condition called gestational trophoblastic disease. In this case, the lab will need to dilute the sample before performing the test to get an accurate result.

False positives test is positive, but you're not pregnant very rarely happen. You may get a false positive if you are taking a medication that contains hCG such as when undergoing fertility treatments or due to certain medical issues. Even though a blood pregnancy test can be performed earlier, it can take longer to receive your results compared to a urine test.

Timing of results vary from lab to lab and can range from an hour to a few days. What you should do Go to your nearest clinic or a professional medical practitioner Complete a patient form If you prefer a: blood test, your doctor will draw blood sample and send it to a laboratory for analysis urine test, your doctor will give you a specimen cup where you will have to provide a urine sample.

Note: You can also buy a home pregnancy test kit from pharmacies. How long does it take Urine test results — immediately Blood test results - few hours or days. Home pregnancy test kits Home pregnancy test kits are available from pharmacists. How to use a home pregnancy test kit Home pregnancy test kits vary in their sensitivity to hCG.

Generally speaking, most home pregnancy tests follow the same basic principles: You collect urine in a small container and dip the test strip into the urine. Alternatively, some kits offer a test strip that you hold under your stream of urine. To improve accuracy of results, it is best to test your urine when you first get out of bed. Early morning urine is concentrated and contains higher levels of hCG than at other times of the day.

Most test strips indicate the presence of hCG by the appearance of a coloured line or dot. Results are rapid. Most test kits take only a few minutes to complete. Most kits come with a second test strip. This allows you to test again at a later stage.

Other reasons for a missed period Pregnancy is not the only reason for a missed period. Other possible reasons include: Breastfeeding Emotional stress Severe weight loss Severe dieting and exercising Obesity Particular drugs Menopause onset. False-negative results Sometimes, a woman may be pregnant but the home test kit gives a negative result. Common causes of false-negative results include: The test kit is used too early in the pregnancy and hCG levels are too low to be detected.

The test is incorrectly timed. Use a kitchen timer or a watch with a second hand to be sure. The test is used incorrectly. The woman drank lots of fluids before taking the test and diluted her urine to the point where hCG levels are no longer detectible.

Always see your doctor for confirmation If a home pregnancy test gives a negative result, yet you feel that you are pregnant: Trust your instincts. Treat yourself as if you are pregnant until proven otherwise.