Final answer:
The preparation of a D5W solution involves calculating the moles of glucose with the given molarity and volume, then converting those moles to mass using the molar mass of glucose. Pediatric D50W dosages are tailored to the child's weight and specific needs for fluid replacement or treatment of dehydration.
Step-by-step explanation:
The question relates to the preparation of a pediatric Dextrose 50% Water (D50W) dosage for intravenous administration. For medical professionals, creating accurate intravenous solutions, such as D5W, is essential. The D5W solution consists of approximately 5% dextrose in water. To calculate the mass of glucose needed to prepare a solution, you must know the molarity, volume, and molar mass of glucose.
The process involves two steps: First, calculate the number of moles of glucose using the volume of the solution and its molarity. Then, obtain the mass of glucose by multiplying the number of moles by the molar mass of glucose. For a 0.310 M glucose solution, you would multiply 500 mL (0.5 L) by 0.310 mol/L to find the moles of glucose. Then multiply the moles by the molar mass of glucose (180.16 g/mol) to find the mass required for the solution.
For a dehydrated patient, an intravenous infusion of D5W or similar solutions may be administered to replace body fluids. The exact pediatric dosage of D50W would be determined based on the child's weight and specific medical needs, following guidelines that recommend proper fluid volume for prevention of blood loss or treatment of dehydration.