The patient/client is to receive Prozac Liquid ( fluoxetine hydrochloride) 450 mg po every 8 hours. The medication is available as Prozac Liquid ( fluoxetine hydrochloride) 300 mg per 5 mL. How many teaspoons should the nurse instruct the patient/client to take?
A) 0.5
B) 1
C) 1.5
D) 2

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, the use of an equivalent is necessary (1 tsp = 5 mL) to change 5 mL to teaspoons. Estimate the amount to give. Formula Method: 450 mg/300 mg * 5 mL = 2250/300 = 7.5 mL = 1.5 teaspoons. Proportion (Ratios): 5 mL: 300 mg :: x mL : 450 mg; 300x = 2250/300 = 7.5 mL = 1.5 teaspoons Proportion (Fractions): 5 mL/300 mg = x mL/450 mg; 300x = 2250/300 = 7.5 mL = 1.5 teaspoons. Use a conversion factor for dimensional analysis. Dimensional Analysis: 5 mL/300 mg * 450 mg * 1 tsp/5 mL = 5* 450 *1 tsp/300 * 5 = 2250/1500 = 1.5 teaspoons. For liquids, the four methods are set up just as for oral solids, except the supply includes a liquid measurement.

The Patient/client Is to Receive Prozac Liquid ( Fluoxetine Hydrochloride)