Difficulty: Medium
Average Score: 64%
Simulated
The nurse is initiating an IV infusion of lactated Ringer's (LR) for the client in shock. What is the purpose of LR for this client?
Correct answer
A
Rationale
A: LR is an isotonic crystalloid solution containing multiple electrolytes in approximately the same concentration as plasma. It enters the cells from the blood, provides fluids, and increases urinary output. B: A hypertonic solution draws fluid from the cells into the vascular compartment; LR is isotonic. C: LR alone does not contain dextrose. Formulations with dextrose are available. D: Magnesium is not a component of LR.