Fluid Resuscitation

Fluid Resuscitation in Children: Boluses and Reassessment

Fluid is the most commonly given treatment for shock in children, and one of the easiest to get wrong in either direction. The PALS course teaches a simple discipline: give a measured bolus, then reassess before giving more.

In short

Isotonic crystalloid boluses of 10 to 20 mL/kg, delivered quickly, with reassessment of perfusion and signs of overload after each one. Smaller volumes and more caution in cardiogenic shock.

The bolus

For hypovolaemic and distributive shock, boluses of 10 to 20 mL/kg of isotonic crystalloid are given rapidly, by push-pull syringe or pressure bag if needed. The dose is by weight — see weight-based dosing.

Reassess after every bolus

  • Better: heart rate falling, capillary refill improving, mental state improving.
  • Worse: crackles, enlarging liver, increasing breathlessness — stop and seek help.

When to be cautious

In cardiogenic shock, smaller boluses of 5 to 10 mL/kg are given more slowly. Children with certain heart or kidney conditions, or severe malnutrition, also need more care.

Bleeding

In haemorrhagic shock, blood products are given alongside or instead of crystalloid, and bleeding control is the priority.

Access

Two routes are ideal. If IV access is not quickly obtained, use IO access.

Sepsis

For the full first-hour sequence, see septic shock in children.

This guide summarises what the PALS course teaches, for education only. It is not a clinical protocol: follow the current American Heart Association guidelines, linked below, and your institution’s paediatric policies.

Other life support and first aid courses: BLS Course · ACLS Course · First Aid Course · Training calendar

Frequently asked questions

What is the standard paediatric fluid bolus?

10 to 20 mL/kg of isotonic crystalloid, as taught in PALS, with reassessment after each.

How fast should a bolus be given?

Rapidly, using a push-pull technique or pressure bag if needed.

When should fluids be limited?

When there are signs of fluid overload, and in cardiogenic shock.

Can fluids be given via IO?

Yes.

What about bleeding?

Blood products and bleeding control are the priority.

Practise these skills on an AHA PALS course

Paediatric emergencies are learned by doing. Safety First Medical Services is an American Heart Association training centre on Al Reem Island, Abu Dhabi, with HeartCode, classroom and on-site PALS and a two-year AHA PALS Provider eCard.

See PALS dates and register PALS course overview Group booking enquiry

Sources and further reading

What we teach follows the awarding body and the UAE health authorities. For the definitive position on a course or licensing question, these are the places to check.

Last reviewed by the training team at Safety First Medical Services, an American Heart Association training centre at Addax Office Tower, Al Reem Island, Abu Dhabi. Call +971 55 761 9841 or email training@safetyfirstmed.ae.