2024年5月14日 · Polymerase chain reaction tests, shortened to PCR tests, are molecular tests. You may also hear this type of test called an NAAT test, short for nucleic acid amplification test. PCR tests are more accurate than the other type of COVID-19 test, called an antigen test. You can do PCR tests at home.

2022年12月20日 · COVID-19 antibody testing is a blood test. The test can provide information about how your body reacted to infection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). SARS-CoV-2 is the name of the virus that causes coronavirus disease 2019 (COVID-19). It also can show how your body reacted to COVID-19 vaccines. Antibody testing ...

2024年7月18日 · This is especially true if you don't have symptoms. If you take an antigen test and are negative for COVID-19, take another antigen test after 48 hours to check the results. Tests for more than one virus. An RT-PCR test called the Flu SC2 Multiplex Assay can show any of three viruses at the same time: the COVID-19 virus, influenza A and ...

2024年2月9日 · Antibody tests. These tests look for antibodies to HIV in blood or saliva. Most rapid HIV tests are antibody tests. This includes self-tests done at home. You may not show a positive result on an antibody test until 3 to 12 weeks after you've been exposed to HIV. Nucleic acid tests (NATs). These tests look for the virus in your blood, called ...

2022年5月5日 · The test looks for proteins (antigens) associated with H. pylori infection in the stool. Stool PCR test. A lab test called a stool polymerase chain reaction (PCR) test can detect H. pylori infection in stool. The test can also identify mutations that may be resistant to antibiotics used to treat H. pylori. However, this test is more expensive ...

2023年6月23日 · The extractable nuclear antigen test, known as an ENA test, is a blood test that checks for proteins in your blood, also known as antibodies. The ENA test is used to help diagnose certain autoimmune diseases. ENA stands for extractable nuclear antigen because these proteins can be taken out (extracted) from the cells in the body.

As described in a study to be published in Mayo Clinic Proceedings, the new antibody test's results are available in about 20 minutes. The researchers analyzed paired cerebrospinal fluid and serum samples from 702 patients who had immunoglobulin kappa cerebrospinal fluid (KCSF) testing and oligoclonal band testing at Mayo Clinic.

2022年7月29日 · If you're Rh negative, you might need to have another blood test — called an antibody screen — several times: during your first trimester, during week 28 of pregnancy and when your baby is born. Some people need the test more often. That test is used to detect antibodies to Rh positive blood.

2023年4月27日 · The PSA test is a blood test used primarily to screen for prostate cancer. The test measures the amount of prostate-specific antigen (PSA) in your blood. PSA is a protein produced by both cancerous and noncancerous tissue in the prostate, a small gland that sits below the bladder in males.

2024年7月13日 · After your test, you can go about your daily activities as usual. Ask when you will get your test results. Results. Results from your HPV test come back as positive or negative. Positive HPV test. A positive test result means that you have a type of high-risk HPV that's linked to cervical cancer. It doesn't mean that you have or will get ...