Question

1.) ​​Order: Nitroglycerine 50 mg in 250 mL​ normal​ saline, infuse at​ 10​ mcg/minute. Calculate the rate​ in​ mL/h. ​a) Show and explain how to set up your calculation using dimensional analysis to find the rate in​ mL/h.

2.)An IV is infusing at​ 50​ mL/h.

The strength of the solution in the bag is​ 150​ mg/mL.

What is the dosage rate​ in​ g/h?

​a) Show and explain how to set up the calculation to find the dosage rate in​ g/h.

3.) ​​Order: Wellcovorin​​ (leucovorin calcium) 10​​mg/m squared 2 PO stat.

The label on the ampule reads​ 1.5​ mg/mL.

Calculate how many milliliters you will prepare for a child whose BSA is 0.84m squaredm2.

​a) Show and explain your steps in using dimensional analysis to find the number of mL of Wellcovorin to prepare.

Answer 1

1.Nitroglycerine 50 mg in 250 ml

1mg= 1000mcg

Means 50000 mcg in 250 ml

=200mcg/ml

infuse at​ 10​ mcg/minute

10 mcg=0.05 ml

calculate rate​ in​ mL/h= 0.05 ml/min

=0.05 X60 ml/hr.

2. An IV is infusing at​ 50​ mL/h.

What is the dosage rate​ in​ g/h?

The strength of the solution in the bag is​ 150​ mg/mL.

1 ml=150 mg

then 50 ml= 150X50 mg= 7500 mg= 7.5 g (as 1 g=1000mg)

means 50​ mL/h is = 7.5 g/hr.

3.​​Order: Wellcovorin​​ (leucovorin calcium)= 10​​mg/m squared 2 PO stat.

The label on the ampule reads​ 1.5​ mg/mL.

= 3 ml/hr