A blood test is when a sample of blood is taken for testing in a laboratory. Blood tests have a wide range of uses and are one of the most common types of medical test. For example, a blood test can be used to:
- assess your general state of health
- confirm the presence of a bacterial or viral infection
- see how well certain organs, such as the liver and kidneys, are functioning
A blood test usually involves the phlebotomist taking a blood sample from a blood vessel in your arm. and the usual place for a sample is the inside of the elbow or wrist, where the veins are relatively close to the surface. Blood samples from children are most commonly taken from the back of the hand. The child's hand will be anaesthetised (numbed) with a special cream before the sample is taken.
You can find out more about blood tests, their purpose and the way they are performed on the NHS Choices website.
Changes to the Blood Test Service
From January 2014 if your GP, Practice Nurse or Community Nurse asks you to attend for a blood test, you will no longer be able to go to Medway Maritime Hospital, but can attend one of the community clinics or GP practices that provide a phlebotomy service in Medway - the full list of venues can be found by clicking on the link below.
Blood Tests in Medway