1.Your patient has a Heparin IV infusion. The physician has ordered 25,000 nits of Heparin in 500 ml of 0.45 NaCl to infuse at a rate of 1200 units per hour. At how many ml/ hr would you set the pump?Twelve hours following the start of the heparin infusion, the physician orders to discontinue it. How many ml did the patient receive?2.The order is to give Lasix (furosemide) 40 mg IV push. Available is Lasix 10 mg/ml. How many ml of Lasix would you administer?It is recommended that Lasix be administered at a rate of 10 mg/ min. How many minutes would it take to administer 40 mg?3.One unit of PRBCs (packed red blood cells) is ordered to be given over 2 hours. The bag of PRBCs contain 325 ml. Available is a blood filtered tubing which delivers 10 gtt/ml. You would infuse the unit of PRBCs at a rate of how many ml/hr?How many drops per minute?4.Order: Flagyl 500 mg, in 100 ml of NS, to infused over 60 minutes.At how many ml/hr would you set the IV pump?5.You have an order for 24 units Novlin 70/30 ordered every AM before breakfast. What does the numbers “70” and “30” mean? 6.Dilantin (Phenytoin) 1 Gram bols has been ordered on a patient who was admittedwith a history of new onset of tonic/ clonic seizures. You are to administer the Dilantin bolus at a rate of 50 mg/min. Available is Dilantin 1000mg in 100 ml of NS. How man minutes should you take to infuse the Dilantin?At how many ml per hour would you set the IV pump?7.Your patient has an order for Tridil (nitroglycerin) IV infusion. Available is Nitroglycerin 100 mg in 250 ml of D5W. How many mcg/ ml is in this solution?8.Order: Demorol 25 mg IV q2h prn chills. Available: Meperidine 50 mg/ ml. How many ml will you give?9.A patient is to receive Droperidol 0.625 mg IVP for nausea.Available: Droperidol 5 mg/ 2ml. How many ml will you give?

10.You need to administer 40 mmols of potassium phosphate in 250 ml of D5W to infuse IV over 8 hours. How many ml/hr will you set the pump?11.A patient has been ordered to receive Esmolol 500 mcg/kg/min. The patient weighs 165 lbs. How many mcg/min is the patient to receive?12.A patient is to be placed on a Morphine PCA. The concentration of the PCA solution is 1 mg/ml. The continuous rate is 1 mg/hr, the PCA dose is 1 mg, and lockout is 15 minutes in addition, the patient can receive 2 mg bolus per 60 minutes. How many maximum and minimal mg/ hr can this patient receive?13.You have to infuse a bolus of NS 500 ml over 30 minutes per pump. At how manyml would you set the pump? (Note the maximum flow that the pump infuses is 999 ml per hour)14.Your patient is to receive Cipro 400 mg IVPB in 200 ml of D5W to infuse over 60minutes. At how many ml per hour would you set the pump?15.A patient to receive Ceftrioxone 500 mg IVPB q6h. Available is Ceftrioxone 500mg/ 50 ml of NS. Available is an IV tubing which delivers 20 gtt/ml. You are to infuse this IVPB over 30 minutes. How many gtt/ min would you infuse?

Dosage Calculations
Practice Problems
N-53