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 Blood tests requested by your doctor can be taken at Ruthin Hospital and Denbigh Infirmary. Due to high demand both hospitals are now operating a pre-booking system for blood. If you know that you are going to need bloods taking for a future hospital appointment, clinic etc, please book your appointment as early as possible to ensure these bloods are done before your clinic date. To make an appointment please ring between 10am and 2pm Monday to Friday , for Ruthin Hospital please ring 03000 850025 and for Denbigh Infirmary please ring 01745 818100.