Your doctor might order a test if you ... You might hear your doctor or nurse call this a serum sodium test. For the test, a technician will draw ... and blood will collect in a glass vial or a tube.

The type of blood test a healthcare provider might order depends on what components in the blood are under scrutiny. Many people get blood tests regularly for a general update on the status of ...

Worried about getting a blood test? 5 tips to make ... and a small amount of blood is collected and transferred into a test tube. ... not do heavy lifting for a few hours after a blood draw.

Phlebotomy is when someone uses a needle to take blood from your vein. It’s also called a blood draw or venipuncture. WebMD explains the process, risks, and side effects.