BONENT Continuing Dialysis Education (CDC) Practice Exam

The most commonly used volume expander in hemodialysis is 0.9% NaCl, also known as normal saline. This isotonic solution is utilized to maintain proper fluid balance and to manage the patient's blood volume during the hemodialysis process. It closely matches the body's plasma osmolarity and can effectively counteract hypotension that may occur during dialysis sessions. Normal saline is particularly effective because it does not introduce any additional glucose, electrolytes, or other compounds that could complicate the patient’s electrolyte balance. Additionally, its composition allows for easy administration in a dialysis setting, where rapid and safe fluid administration is crucial. By choosing 0.9% NaCl, healthcare providers can ensure that patients maintain adequate vascular volume and reduce the risks of complications such as hypotension or dehydration during treatment.