Blood tests

man having his blood taken to be tested

Our Phlebotomy department have been very busy recently. Because of this, our Phlebotomy team may need to stop accepting walk-in patients at 4pm, which is earlier than the usual closing time. This is to make sure that everyone who has already arrived at the department will be able to have their blood test.

Where to go to have a blood test

From Barking to Brentwood and Rainham to Romford, there are lots of places that offer blood testing.

Download our Where to go to have a blood test leaflet

Children's blood tests

Children aged under 5 years can have a blood test with an appointment at our paediatric service in the children’s outpatient department, first floor, Queen’s Hospital.

To book an appointment at Queen’s Hospital, call 01708 435 289 9am to 1pm and 2 to 5pm, Monday to Thursday.

Children aged 5 to 11 years can either have an appointment at the paediatric phlebotomy service at King George Hospital, or use the walk-in service at Queen’s Hospital in the main blood test department on the ground floor in the atrium. 

To book an appointment at the paediatric phlebotomy service at King George Hospital, call 0208 970 5817 9am to 1pm and 2 to 5pm, Monday to Thursday.

Children aged 12 and older can be seen in the main phlebotomy (blood test) departments at either King George or Queen’s Hospitals.

Children aged 0 to 18 with special needs or with needle phobia can be seen at Queen’s Hospital with an appointment. To book an appointment, call 01708 435 289 9am to 1pm and 2 to 5pm, Monday to Thursday.

Children should be well hydrated before a blood test. In the four hours before the appointment, the child should have approximately 2 bottles (200ml) or cups of clear fluids such as water or squash.

Blood tests at King George Hospital

We are open from 7am to 4.30pm, Monday to Friday. The blood testing area is in block 6, which is signposted from the main atrium.

We operate a ticketing system. Once you get to the blood testing area, take a number and a seat. Your number will be displayed when we are ready for you.

If you need a glucose tolerance test (GTT), please call 020 8970 8383 to book an appointment. Lines are open from 8am to 12pm, Monday to Friday.

Please note we are closed on bank holidays.

Blood tests at Queen's Hospital

We are open Monday to Friday 7am to 4.30pm, and Saturdays (by prior appointment only) 8.30am to 12.30pm. The blood testing area is towards the back of the main atria, near pharmacy.

We operate a ticketing system. Once you get to the blood testing area, take a number and a seat. Your number will be displayed when we are ready for you.

If you need a glucose tolerance test (GTT), please call 01708 435498 to book an appointment. Lines are open from 9am to 4.30pm, Monday to Friday.

Please note we are closed on bank holidays.

Queen's Hospital Saturday appointment service

Our Phlebotomy team at Queen's Hospital are trialing a new Saturday morning blood test service. 

This service will be available by appointment only between the hours of 8.30am - 12.30pm. Patients can book their slot by calling 01708 435 498 between 10am and 1pm, Monday to Friday.

Overnight fasting tests

We know it’s not a nice thing to have to go without food but it’s really important that you do follow the rules around this, so we get accurate results.

Your fasting period will normally start from 10pm until the blood has been taken.

You can drink water and take normal medications – anything else may affect the results of your test. Your GP or clinician in charge of your care will give you any specific instructions.

Labelling specimens

Please ensure specimen containers are labelled with:

  • first name
  • family name
  • date of birth
  • gender
  • date and time of when the specimen was collected

Leaving specimens out of hours

When closed, urine and faecal specimens may be left in:

  • the black sample post box in the main entrance at King George Hospital
  • the green sample box in the blood test area at Queen’s Hospital

Please make sure your samples are fully labelled.

Blood samples and 24 hour urine tests must be delivered to the pathology laboratory directly.