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What can a blood test tell you?
What happens during a blood test?
What is a blood test used for?
Why do I need a blood test?
A blood test may be done to: check your general health; find out if symptoms you're having are caused by certain conditions; find out if you're more likely to get a condition; find out how well a condition is being treated or managed; How to get a blood test. If a healthcare professional such as a GP, nurse or a specialist thinks you need a ...
- Complete Blood Count
- What It Indicates
- Basic Metabolic Panel
- Comprehensive Metabolic Panel
- Lipid Panel
- Thyroid Panel
- Cardiac Biomarkers
- Sexually Transmitted Infection Tests
- Coagulation Panel
- DHEA-sulfate Serum Test
A routine complete blood count (CBC) checks for levels of 10 different components of every major cell in your blood: white blood cells, red blood cells, and platelets. Important components this test measures include red blood cell count, hemoglobin, and hematocrit. Here’s the typicalTrusted Sourcerange of results, although every laboratory may have...
Abnormal levels of these components may indicate:Trusted Source 1. nutritional deficiencies, such as vitamin B6 or B12 2. anemia (iron deficiency) 3. clotting problems 4. blood cancer 5. infection 6. immune system disorders Based on your results, your doctor will order follow-up tests to confirm abnormal levels and a possible diagnosis.
A basic metabolic panel (BMP) usually checks for levels of eightcompounds in the blood: 1. calcium 2. glucose 3. sodium 4. potassium 5. bicarbonate 6. chloride 7. blood urea nitrogen (BUN) 8. creatinine This test may require you to fast for at least 8 hours before your blood is drawn, depending on the instructions of your doctor and what the test i...
A comprehensive metabolic panel (CMP) includes all the measurements of a BMP as well as additionalproteins and substances related to liver function, such as: 1. albumin 2. total protein 3. alkaline phosphatase (ALP), an enzyme mostly found in the bones and liver that’s involved in several bodily processes 4. alanine aminotransferase (ALT), an enzym...
This test checks levels of two typesTrusted Sourceof cholesterol: 1. high-density lipoprotein (HDL), or “good” cholesterol 2. low-density lipoprotein (LDL), or “bad” cholesterol HDL is “good” because it removes harmful substances from your blood and helps the liver break them down into waste. LDL is “bad” because it can cause plaqueto develop in yo...
A thyroid panel, or thyroid function test, checks how well your thyroid is producing and reacting to certain hormones, such as: 1. Triiodothyronine (T3): Along with T4, this regulates your heart rate and body temperature. 2. Thyroxine (T4): Along with T3, this regulates your metabolism and how you grow. 3. Thyroid-stimulating hormone (TSH): This he...
Enzymes are proteins that help your body accomplish certain chemical processes, such as breaking down food and clotting blood. They’re used throughout your body for many vital functions. Hereare the normal ranges for the enzymes listed above: 1. hs-cTn:<1 ng/mL 2. BNP: <100 picograms per milliliter (pg/mL) 3. NT-proBNP: ≤300 pg/mL 4. CK:30–200 unit...
Many sexually transmitted infections (STIs) can be diagnosedusing a blood sample. These tests are often combined with urine samples or swabs of infected tissue for more accurate diagnoses. The following STIs can be diagnosed with blood tests: 1. herpes 2. HIV 3. syphilis 4. hepatitis C Blood tests aren’t always accurate right after contracting an i...
Coagulation tests measure how well your blood clots and how long it takes for your blood to clot. Examples include the prothrombin time (PT) test and fibrinogen activity test. Clotting is a crucial process that helps you stop bleeding after a cut or wound. However, a clot in a vein or artery can be deadly since it can block blood flow to your brain...
The dehydroepiandrosterone (DHEA) hormone comes from your adrenal glands. This test measures whether it’s too high or too low. In men, DHEA helps develop traits like body hair growth, so low levels are considered abnormal. In females, high levels can cause typically male traits, like excess body hair, to develop, so low levels are normal. Low level...
Information on some of the most widely used blood tests.
A blood test can be used to: assess your general state of health. check if you have an infection. see how well certain organs, like the liver and kidneys, are working. screen for certain genetic conditions. Most blood tests only take a few minutes to complete.
May 20, 2024 · Common blood tests may include something called a full blood count, sometimes referred to as a complete blood count (CBC). This is used by your doctor to establish the number, size, and other details of red blood cells, white blood cells, and platelets - which play a major part in blood clotting - you have circulating in your system.
Sep 15, 2023 · What Can Blood Tests Detect? When you have a blood test, a sample of blood is sent to a laboratory and tested for different cells and substances. Often, the amount, size, and concentration of the cells and substances are reported with numerical values that are compared to standard or ideal values.
Learn how the full blood count (FBC) test is used as a broad screening test to check for such disorders as anaemia, infection, and to determine an individual's general health status, or to diagnose certain conditions. Understand what to expect from the test and how to interpret results.
