What fluid therapy is recommended for treating hypovolemia during cardiac arrest?

• A. Lactated Ringer's 1-2 Liters IV/IO
• B. Albumin 25% 1-2 mL IV/IO
• C. Normal Saline 1-2 Liters IV/IO
• D. Dextrose 5% in 0.9% saline IV

Answer: (C)

In this scenario, the goal is to rapidly restore intravascular volume to improve venous return and perfusion during CPR. An isotonic crystalloid that stays mainly in the intravascular space is ideal, so normal saline fits best. Giving 1-2 liters IV or IO quickly raises preload and helps restore coronary and cerebral perfusion without introducing glucose or a large colloid load. Alternatives like albumin (a colloid) don’t show a clear survival benefit in cardiac arrest, and fluids with dextrose can cause hyperglycemia and other metabolic issues during resuscitation. While lactated Ringer’s is also an isotonic option, many guidelines and exam standards designate normal saline as the standard first choice for treating hypovolemia in this context.