A physician prescribed amoxicillin oral suspension 250 mg per dose, to be taken every 8 hours for a child weighing 44 pounds. The available amoxicillin oral suspension is labeled 400 mg/5 mL. How many milliliters (mL) should the medical assistant administer per dose?
3.1 mL
3.5 mL
4.0 mL
2.5 mL
To calculate the correct dose, the concentration of the medication needs to be used. Use the formula: (Desired Dose ÷ Stock Strength) x Stock Volume = Volume to be Administered. Here, it equates to (250 mg ÷ 400 mg) x 5 mL = 3.125 mL. Therefore, the medical assistant should administer 3.125 mL, or the nearest measurable dose which is 3.1 mL per the physician's prescription. It is essential to round the final amount to a measurable value that can be accurately provided with available dosing tools.
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