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Blood Tests

Blood being drawn from a patient'd arm by a nurse.

COVID-19 VISITING UPDATE: Please note our rules regarding hospital visits have changed. For the latest guidance on our visiting regulations, please visit this page.  

Please note the following restrictions for booking blood tests:

Patient Age

Bay Field Hospital cannot accept bookings for patients under 16 years of age.

Morriston, NPTH and Singleton cannot accept bookings for patients under 12 years of age.

For children under the age of 12 requiring bloods, the paediatric departments should be contacted directly to make an appointment. The Blood Test booking line does not book appointments for under 12’s.

Restrictions for Blood Tests at Bay Field Hospital

Please note, the following tests cannot be taken at Bay Field Hospital. Please book a blood test at Morriston, NPTH or Singleton

  • Quantiferon
  • Ammonia
  • Cryoglobulins


General information 

Blood tests, sometimes referred to as phlebotomy, have a wide range of uses and are one of the most common types of medical tests.

A blood test can be used to assess your general state of health, check if you have an infection, see how well certain organs such as the liver and kidneys are working and screen for certain genetic conditions.


You must have a blood form to book your appointment for a blood test.

If you can’t book online you can telephone 01792 601807, Monday to Friday, between 9am and 4pm.
  • There will be a fixed number of appointments available for booked blood tests at each hospital site daily.
  • Please attend blood test appointments alone. Only children or those who are vulnerable may be accompanied into our hospitals due to Covid-19 restrictions. Please do not arrive in the department more than five minutes before your appointment.
  • Disabled access: For health and safety reasons we reserve the right to prioritise patients with mobility issues at our clinics. 

Please make every effort to attend booked blood test appointments in your GP surgery. We keep a record of missed appointments.

You can download a leaflet on our blood test service here.

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