NR 340 Critical Care Practice Questions

NR 340 Medication Practice Answers 2014 Directions: The purpose of this packet is to prepare you for the medication calculation exam that is taken on the first day of class. Complete the medication calculation practice exam prior to the first day of class if needed. In critical care, amounts are specific. If the calculation is not a whole number, then answers are rounded off to the nearest 10th decimal place. Pumps can be programmed to allow for a 10th decimal place. If the calculation is for drops per minute then it is rounded off to the nearest whole number because drops cannot be divided. Good Luck! 1. Your patient is ordered a dopamine drip at 7mcg/kg/min. He weighs 120 pounds. Your dopamine is supplied in a concentration of 400mg per 250ml D5W. At how many ml/hr should the IV pump be set? 2. Your patient is on Nitroprusside (Nipride) to keep his systolic blood pressure less than 180mmHg. The physician orders state to begin the infusion at 0.1mcg/kg/min and to titrate up every 3 to 5 minutes to desired effect. Maximum dose to be given is 5mcg/kg/min. Your patient weighs 150 pounds. The medication comes supplied as 50mg in 250ml D5W. At how many ml/hr should the IV be started? What is the maximum ml/hr that the nipride can be run at? 5 mcg 250 mL 1 mg 1 kg 150 lbs 60 min = Kg/min 50 mg 1000 mcg 2.2 lbs 1 1 hr = 110000 3. The physician orders Fentanyl 3mcg/kg IVP at a rate of 2mcg/kg/min for analgesia prior to inserting an endotracheal tube. The patient weighs 50 kg. The Fentanyl is supplied as 100mcg/ml. How long will it take you to push the medication? 4. Your patient is ordered heparin per heparin protocol. The patient has been receiving heparin at 1500 units/hour. The PTT result is 40. Per the heparin protocol you should increase the heparin drip by 2 units/kg/hr. Your patient weighs 110 pounds. The Heparin bag is labeled 25000 units in 500 ml D5W. How many ml/hr is your patient currently receiving? How many units/hour will the patient be receiving when you increase the rate? 2 Units 1 kg 110 lbs = Kg/hr 2.2 lbs 1 220 = 2.2 100 Unit/hr increase. The patient is already receiving 1500 Units/hr. Therefore 1500 Units/hr + 100 Units/hr = 1600 Units/hr