Question

calculate mcg/min and ML/hr flow rates for questions 6-10. please show steps on how to solve this math. Thank you!

6. A 2 mcg/kg/min dosage has been ordered for an adult weighing 79.9 kg. The solution strength available is 50 mg/250 mL 7. A dosage of 3 mcg/kg/min has been ordered using a 350 mg/250 mL solution strength The body weight is 86.9 kg. 8. An adult weighing 84.3 kg has a dosage of 3 mcg/kg/min ordered. The solution to be used is 0.75 g/300 mL 9. A4.5 mcg/kg/min dosage is ordered for an 84.9 kg adult. The solution strength is 1.2 g/500 mL. 10. A 6 mcg/kg/min dosage is ordered for an adult weighing 85.8 kg. The solution strength is 800 mg/500 mL.

Answer 1

6. 2 mcg/kg/min = 2 $\times$ 79.9 = 159.8 mcg/min or 160mcg/min (rounded to nearest)

Flow rate = required dose $\times$ available volume $\div$ available dose

                = 159.8 $\times$ 250 $\div$50000

                = 0.79 ml/min (can be rounded to 0.8)

For 1 hour = 0.79 $\times$ 60

                  = 47.4 ml/hr

7. 3 mcg/kg/min = 3 $\times$ 86.9 = 260.7 mcg/min or 261 mcg/min (rounded to the nearest)

Flow rate = required dose $\times$ available volume $\div$ available dose

                = 260.7 $\times$ 250 $\div$ 350000

                = 0.19 ml/min (can be rounded to 0.2)

For 1 hour = 0.19 $\times$ 60

                  = 11.4 ml/hr

8. 3 mcg/kg/min = 3 $\times$ 84.3 = 252.9 mcg/ min or 253 mcg/min (rounded to the nearest)

Flow rate = required dose $\times$ available volume $\div$ available dose

               = 252.9 $\times$ 300 $\div$ 750000

              = 0.10 ml/ min

For 1 hour = 0.1 $\times$ 60

                  = 6 ml/hr

9. 4.5 mcg/kg/min = 4.5 $\times$ 84.9 = 382 mcg/min

Flow rate = required dose $\times$ available volume $\div$ available dose

                = 382 $\times$ 500 $\div$ 1200000

                = 0.16 ml/min

For 1 hour = 0.16 $\times$ 60

                 = 9.6 ml/hr

10. 6 mcg/kg/min = 6 $\times$ 85.8 = 514.8 mcg/min or 515 mcg/min (rounded to the nearest)

Flow rate = required dose $\times$ available volume $\div$ available dose

                = 514.8 $\times$ 500 $\div$ 800000

                = 0.32 ml/min

For 1 hour = 0.32 $\times$ 60

                 = 19.2 ml/hr