Question

I need help figuring out how to solve step by step questions 1-5. Can someone please help me? Thank you!

INTRAVENOUS CALCULATIONS Calculate the dosage per min to the tenths, and the mL/hr flow rates. Dosage Per min mL/hr 1.) A dosage of 3 mcg/kg/min has been ordered for an 87.4 kg adult. The solution has a strength of 50 mg in 250 mL 2. A dosage has been ordered at 4 mcg/kg/min using a 400 mg/250 mL solution. The body weight is 92.4 kg 3. A dosage of 2.5 mcg/kg/min has been ordered. The solution is 500 mg/250 mL. The body weight is 80.7 kg. 4. A dosage of 150 mcg/kg/min has been ordered for a body weight of 92.1 kg. The solution strength is 2.5 g/250mL. 5. A 5mcg/kg/min dosage is ordered for a body weight of 80.3 kg. The solution strength is 1 g/100 mL

Answer 1

1).

The required dose for the person per each minute is, 87.4 * 3 mcg = 262.2 mcg/min or 0.262 mg

The available strength is, 50 mg in 250 mL

Means, the volume containing 0.262 mg of dose is, 250 x 0.262 / 50 = 1.31 mL

Thus, the dosage per minute is, 1.31 mL

The mL/hr is, 60 min* 1.31 = 78.6 mL