Clinical Decision Support System

A phlebotomist uses a needle to takes a sample of your blood, usually from a vein in your arm.
But the test is typically not painful, and the process takes just a few minutes.Many patients can check their blood test results in secure online patient portals.
From checking your cholesterol levels and thyroid function to diagnosing infections, diseases and other conditions, blood tests are often the first step in diagnosing dozens of conditions.
Your doctor typically orders blood tests for you during a physical, checkup or screening for a specific condition, including heart disease, thyroid disease, cancer, diabetes and sexually transmitted infections.
Blood tests are very safe. Blood tests are among the most common types of diagnostic tests for good reason. The small amounts of blood drawn for the test can help your doctor check for a wide range of issues.
If your doctor recommends a blood test, be sure you understand what the test measures. Check if you need to do anything to prepare for it. You may feel a slight prick when the needle is inserted into the vein.

As far as research goes, lab blood test analysis is also used for pharmacogenomics where studies on blood samples will show researches the impact of trial drugs on genes and other elements of the body. If you are going in a for a lab blood test analysis you will have to ask for clear instructions from your doctor on how you need to be prepared. Also tests have to be repeated multiple number of times and they have to be perfectly timed as well. In some other, the intake of food is at a particular time. In some cases, fasting is required.