The patient/client is to receive Dilantin (phenytoin) oral solution 100 mg po three times a day. The medication is available as Dilantin (phenytoin) oral solution 125 mg per 5 mL. How many milliliters of medication would the patient/client receive?

Question

Quizplus · Accepted Answer

When solving any problem, first check that the order and the supply are in the same weight measure. For this problem, no equivalent is necessary. Estimate the amount to give. Formula Method: 100 mg/125 mg *5 mL = 500/125 = 4 mL. Proportion (Ratios): 5 mL : 125 mg :: x mL : 100 mg; 125x = 500 mg/125 = 4 mL. Proportion (Fractions): 5 mL/125 mg = x mL/100 mg; 125x = 500 mg/125 = 4 mL. Dimensional Analysis: 5 mL/125 mg *100 mg = 5 mL *100/125 = 500/125 = 4 mL. For liquids, the four calculation methods are set up the same as for oral solids, except the supply includes a liquid measurement.

The Patient/client Is to Receive Dilantin (Phenytoin) Oral Solution 100