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 (please request in writing a prescription from the GP for this cream if you need this).
Children's blood tests: for children under the age of 10yrs an appointment is required at QMC Children's Outpatients dept by ringing 9249924 ext 62661
Children over the age of 10yrs can attend Adult Phlebotomy dept at either City Hospital or QMC and an appointment is not required.
You can find out more about blood tests, their purpose and the way they are performed on the NHS Choices website.