The Royal College of Nursing has announced that industrial action will take place on Monday 6 and Tuesday 7 February. We'll contact you if your care or your child's care is affected. Ambulance workers are planning strike action on Friday 10 February. Learn more.

A number of transport strikes are due to take place this February. If you or your child has an appointment at one of our hospitals or community centres, please plan ahead and do all you can to attend. If you need to cancel your appointment, please contact your clinical team.

Medical formulas

For healthcare professions

Our policy

These medical formulas have been produced by South Thames Retrieval Service (STRS) at Evelina London for nurses, doctors and ambulance technician to refer to in the care of critically ill children.

The medical formulas calculate average requirements. It is the responsibility of the clinician to ensure drugs and equipment are used appropriately according to the clinical situation.

Medical formulas


The logo for the South Thames Retrieval Service (STRS).