Question

calculate thesd ML/hr flow rate ranges. Express answers to the nearest whole ML/hr. Please show step by step on how to solve this. Thank you!

6. A dosage of 4-6 mg/min has been ordered using a solution strength of 2.5 g/400 mL 7. A dosage of 2-4 mcg/min has been ordered using a solution strength of 2 mg/250 mL. 8. The body weight is 99.9 kg, and a range of 5-9 mcg/kg/min is ordered. A 120 mg/50 mL solution is to be used. 9. A range of 30-70 mcg/kg/min infusion is ordered for an 84.3 kg adult. The solution to be used has a strength of 2 g/250 mL. 10. A 75-125 mcg/kg/min dosage is ordered for a body weight of 81.2 kg. The solution available is 2.5g/250 mL

Answer 1

6).

The required dose for the person per each minute is 4-6 mg

The available strength is, 2.5 g in 400 mL or 2500 mg in 400 mL

Means, the volume containing 4 mg of dose is, 400 x 4 / 2500 = 0.64 mL

Thus, the dosage per minute is, 0.64 mL

The mL/hr is, 60 min* 0.64 = 38.4 mL

Similarly,

The volume containing 6 mg of dose is, 400 x 6 / 2500 = 0.96 mL

Thus, the dosage per minute is, 0.96 mL

The mL/hr is, 60 min* 0.64 = 57.6 mL

Thus, the dose range to be administered in an hour is, 38.4 mL – 57.6 mL/hr