What IV solution does the nurse anticipate for a client presenting with vomiting and diarrhea, given specific ABG analysis results?

The most appropriate IV solution for a client presenting with vomiting and diarrhea, especially when considering specific ABG (arterial blood gas) analysis results, is normal saline at a concentration of 0.9%. This solution is isotonic, which means it has a similar osmolarity to blood plasma, helping to replace lost fluids and electrolytes effectively.

When a patient experiences significant fluid loss through vomiting and diarrhea, they can become dehydrated and may develop electrolyte imbalances. Normal saline 0.9% contains sodium and chloride in a concentration similar to that found in the body, making it particularly useful for restoring intravascular volume. It is often the first choice in such scenarios since it helps in rehydration, prevents hypovolemia, and ensures that the electrolyte levels remain stable.

In contrast, a hypertonic solution like normal saline 3% is typically used for specific situations such as severe hyponatremia, and may not be appropriate at the outset of treatment for vomiting and diarrhea. Dextrose 5% in water provides little electrolyte support and is primarily used for maintaining hydration rather than addressing acute volume loss. Ringer solution, while useful for electrolyte replacement, may not be the first-line treatment when straightforward isot