Final answer:
To calculate the infusion rate in ml/hr for Aminophylline, we find that with a concentration of 1 mg/ml, the infusion rate to deliver 65 mg/hr equates to 65 ml/hr.
Step-by-step explanation:
The healthcare provider has ordered Aminophylline 250 mg to be diluted in 250 ml of D5W to infuse at a rate of 65 mg per hour. To calculate the infusion rate in ml/hr (milliliters per hour), we use the formula:
Infusion Rate (ml/hr) = (Ordered Dose (mg/hr) / Concentration of Drug (mg/ml)) x Volume of fluid (ml)
First, we calculate the concentration of the drug:
Concentration of Aminophylline = Total amount of drug (mg) / Total volume of fluid (ml) = 250 mg / 250 ml = 1 mg/ml
Now, we can calculate the infusion rate:
Infusion Rate (ml/hr) = (65 mg/hr / 1 mg/ml) x 250 ml = 65 ml/hr
Therefore, the infusion rate should be set to 65 ml/hr.