Final answer:
The routine prehospital cooling of patients with rapid infusion of cold IV fluids after ROSC is not recommended. If red blood cells burst after an injection of what is labeled as isotonic saline solution, it suggests that the solution was hypotonic, not isotonic.
Step-by-step explanation:
The question asks whether the prehospital cooling of patients with rapid infusion of cold IV fluids after the return of spontaneous circulation (ROSC) is recommended. The answer is true: it is not recommended. Current guidelines advise against the rapid prehospital cooling of post-cardiac arrest patients with cold IV fluids, as there is insufficient evidence to support the practice, and it might be associated with adverse effects.
As for the separate question regarding the isotonic saline solution, if a patient's red blood cells burst after injection, this suggests the solution was actually hypotonic to the patient's blood cells. Red blood cells will swell and burst (a process called hemolysis) when placed in a hypotonic solution because water moves into the cells where the concentration of solutes is higher. An isotonic solution, by definition, would not cause a net movement of water into the cells, so red cells would maintain their shape and not burst. Therefore, the correct answer would be c) False, the solution was hypotonic.