Blood test

A blood test, also known as a bloodwork or blood panel, is a diagnostic procedure that involves drawing a sample of blood from a person's body and analyzing it in a laboratory. This test is commonly performed to assess overall health, screen for various diseases, and monitor the effectiveness of treatment.

During a blood test, a healthcare professional usually cleans the area from where the blood will be drawn, commonly the inner elbow or back of the hand, using an antiseptic. They then insert a needle into a vein and collect the required amount of blood into a vial or a collection tube.

The collected blood sample is then sent to a laboratory, where it is subjected to various tests depending on the purpose of the blood test. These tests may include measuring levels of blood cells, glucose, cholesterol, liver and kidney function markers, hormones, vitamins, minerals, and various disease-specific markers.

The results of a blood test can provide valuable information about a person's overall health, detect diseases or conditions in the early stages, and help guide healthcare professionals in making appropriate treatment decisions. However, it is important to consult a healthcare professional who can interpret the results accurately and provide appropriate advice and treatment.