A nurse is caring for a client ordered ceftazidime 1g IM every 6 hours. The drug comes in a vial with a powder which is reconstituted with 3mL of sterile water for a final concentration of 280 mg/mL. How many mi. will be drawn into the syringe for the dose ordered? Do not use leading zero (Round to the tenth)

Given: Desired dose: Ceftazidime 1 g IM every 6 hours Available concentration: Ceftazidime 280 mg/mL To find: Volume to administer (in mL) Step 1: Convert desired dose to milligrams 1 gram (g) is equal to 1000 milligrams (mg). Multiply by 1000: Desired dose (mg) = Desired dose (g) x 1000 Desired dose (mg) = 1 g x 1000 = 1000 mg Step 2: Set up the proportion We can use the following proportion to solve the problem: (Desired dose) / (Available concentration) = Volume to administer Step 3: Substitute the values Plugging in the given values, we get: (1000 mg) / (280 mg/mL) = Volume to administer Step 4: Simplify To simplify, we can invert the denominator and multiply: (1000 mg) x (1 mL / 280 mg) = Volume to administer The "mg" units cancel out, leaving us with: (1000 x 1 mL) / 280 = Volume to administer Step 5: Calculate Performing the multiplication and division, we get: 1000 mL / 280 = Volume to administer 3.57 mL ≈ Volume to administer Step 6: Round to the nearest tenth 3.6mL