The nurse is reconstituting a powdered medication that is labeled, "Add 2.5 mL of normal saline to make 1 gram per mL." The dient's prescription is for 500 mg of the medication. How many mL should the nurse administer to this client? (Enter numeric value only. If rounding is required, round to the nearest tenth.)

Here's how to calculate the volume the nurse should administer after reconstituting the medication: 1. Reconstitution and Concentration: The medication label states adding 2.5 mL of normal saline will make a solution with a concentration of 1 gram per mL. This means after reconstituting, each 1 mL of the solution will contain 1 gram of medication. 2. Dose conversion: The client's prescription is for 500 mg. We need to convert it to grams since the concentration is in grams per mL. Conversion: 1 gram (g) = 1000 milligrams (mg) Prescribed dose (g) = 500 mg / 1000 mg/g Prescribed dose (g) = 0.5 g (round to nearest tenth) 3. Calculate the volume to administer: We know the concentration after reconstitution (1 gram/mL) and the desired dose in grams (0.5 g). Volume to administer (mL) = Dose (g) / Concentration (g/mL) Volume to administer (mL) = 0.5 g / 1 g/mL Volume to administer (mL) = 0.5 mL (round to nearest tenth as requested) Therefore, the nurse should administer approximately 0.5 mL of the reconstituted medication to the client.