Intermediate
Technical
In the Industry Vocabulary Test
crystalloid
Clear intravenous fluids containing electrolytes that freely cross capillary membranes, used for volume resuscitation and maintenance.
Full Definition
Aqueous solutions of small molecules (typically electrolytes) that distribute throughout the extracellular space when administered intravenously. Common crystalloids in pediatric critical care include normal saline, lactated Ringer's solution, and balanced salt solutions. Unlike colloids, crystalloids readily cross capillary barriers and require larger volumes for effective resuscitation. Pediatric dosing typically begins with 10-20 mL/kg boluses, with careful monitoring for fluid overload.
Usage
Usage note: Often contrasted with colloids in fluid resuscitation discussions.
In Context
- "Initial resuscitation consisted of 20 mL/kg of crystalloid followed by reassessment of perfusion." — Emergency treatment protocol
- "The choice between crystalloid and colloid resuscitation was debated given the patient's capillary leak syndrome." — Treatment planning discussion
Also known as
electrolyte solution
clear fluids
Contrasted with
colloid
blood products
Don't confuse with
colloid
blood products