What is the maximum amount of 0.9% NaCl IV bolus that can be given to the patient?

• A. 250 mL
• B. 500 mL
• C. 1000 mL
• D. 200 mL

Answer: (B)

The correct answer is based on typical medical guidelines concerning the administration of intravenous (IV) fluids, particularly isotonic solutions like 0.9% NaCl (normal saline). The maximum amount that can be safely given in a single bolus typically reflects both patient safety and the clinical context of the fluid administration.

In many clinical situations, especially during emergency care, a bolus of IV fluids is generally considered to be up to 500 mL for adults. This volume allows for effective volume resuscitation without overwhelming the patient, particularly in cases of dehydration or hypovolemia. Administering more than this amount at one time can increase the risk for complications such as fluid overload, especially in patients with compromised cardiac or renal function.

In certain scenarios, such as in critical care or during surgery, fluid resuscitation may require higher volumes; however, those cases would typically involve closely monitored administration over time rather than an immediate bolus.

Therefore, the selection of 500 mL as the maximum amount for a single bolus of 0.9% NaCl IV aligns with common clinical practice, ensuring both efficacy in treatment and safety for the patient.