crystalloid solution

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Related to crystalloid solution: colloid solution, Ringer lactate

crystalloid solution

Transfusion medicine A balanced isotonic solution–eg, Ringer's lactate or saline fluid solution, used for volume expansion. Cf Colloid solution.


1. resembling a crystal.
2. a noncolloid substance. Crystalloids form true solutions and therefore are capable of passing through a semipermeable membrane, as in dialysis. The physical opposite of a crystalloid is a colloid (3), which does not dissolve and does not form true solutions.

crystalloid particle
a matrix particle in a single membrane contained in a peroxisome, when viewed through an electron microscope. Called also nucleoid.
crystalloid solution
contains electrolytes and nonelectrolytes which will diffuse into all body fluid compartments. Examples are Ringer's solution and 5% dextrose in water.
References in periodicals archive ?
3 U/min can be achieved by the administration of 20 U of oxytocin in 1 L crystalloid solution at a rate of 15 mL/min until uterine tone is achieved.
Therefore, they should not decrease plasma colloid oncotic pressure (COP) as much as crystalloid solutions and intravascular volume should be better maintained.
Intravenous access was established and patients were pre-loaded with 20 mL per kg of crystalloid solution 20 minutes prior to giving subarachnoid block.
Urinary catheter may be necessary; 120 to 150 mL/kg/d of a crystalloid solution is needed.
she was also given fluid challenge with 750ml of crystalloid solution.
Anesthetic Protocol: One liter of crystalloid solution was administered before initiation of the epidural block.
He was hypotensive at time of presentation and was quickly stabilized with one litre of intravenous crystalloid solution.
In our study, ephedrine was used prophylactically as single 10 mg dose intravenously to observe its efficacy to prevent hypotension in patients during spinal anesthesia along with preloading them with crystalloid solution i.
For instance, Jackson et al (19) in 1995 compared the hemodynamic effects of 1000ml preload with 200ml preload of crystalloid solution administered 10min before spinal anesthesia for Caesarean delivery and found no difference in ephedrine requirement between the two groups.
About 75 to 80% of any crystalloid solution given diffuses into the interstitial space within 15 to 20 minutes, while 75% of the colloid remains largely within the intravascular space for a longer period.