NR464 med calc practice problems

1000

There are ___mcg per mg. Write answer as a whole number. Note: You will need to know this conversion for your MDCQ I quiz in order to come up with the correct dose for a medication in a problem.

(0.7, .7, 0.7 mL, .7 mL)

Jose Ramirez, a 75-year-old, is admitted to the medical unit with a fractured hip and is placed on enoxaparin (Lovenox ) 70 mg SC q 12 hours. Pharmacy sends a 100 mg/mL prefilled syringe to the unit. The nurse should administer _____mL with each dose? Answer should include a decimal. Do not include unit of measurement in answer.

(25,000 units/500mL) x (12mL/hr) = 600units/hr

A client is receiving 25,000 units of Heparin in 500 mL of 5% Dextrose solution at 12 mL/hr. The nurse knows that the patient is receiving ______ units/hr of Heparin. Answer as a whole number without decimals. Do not include units of measurement in your answer.

(1000, 999)

A client's blood pressure has dropped to 80/50. The physician orders 500 mL of 0.9% NS to infuse over 30 minutes. The nurse should set the infusion pump to run at ___ mL/hr? Answer as a whole number without any decimals. Do not include the unit of measurement in your answer.

2

A patient has an order for Humalog Insulin every 4 hours according to the sliding scale below. The patient's blood glucose is 172 mg/dL. The nurse should administer ____ units of insulin. Write answer as a whole number. Do not include the units of measurement in your answer.

1.28

A patient is diagnosed with a pulmonary embolus and a heparin bolus is ordered followed by a heparin infusion. The order for the bolus is 80 units of heparin per kg of body weight. The patient weighs 176 pounds. The PYXIS has heparin 5000 units/mL in stock. The nurse should administer ____ mL of heparin as a bolus to this patient. Include a decimal in your answer. Do not include units of measurement in your answer. Round answer off to the nearest hundredth.

(order / Given) x (Vol) = Vol/ hr Order: 600 units Given: 25,000 units in 500 mL 600/2500 x 500= 12 mL/hr

A patient is receiving Heparin 600 units/hr per infusion pump. A solution of Heparin 25,000 units in 500 mL 5% Dextrose is hanging. In order to give this patient 600 units/hr, the nurse knows that the infusion pump should be set at ___ mL/hr.

(0.125 mg/0.5) x (2 mL) = 0.5 mL

A patient is to receive 0.125 mg of digoxin (Lanoxin) IVP slowly for uncontrolled atrial fibrillation. The Pyxis has 0.5 mg in 2 mL.The nurse plans to draw up ____mL to administer the correct dose of 0.125 mg. Do not include the unit of measurement in your answer. Include decimal in your answer. Write answer per hospital protocol and best evidence to ensure patient receives a safe dose.

50ml/hr x 5hr= 250 1L = 1000ml 1000mL-250mL = 750mL

A patient's IV is infusing at 50 mL/hr and one liter was hung at 1300. When the nurse makes room rounds at 1800, _____ mL should be remaining (or left to be absorbed) in the patient's IV. Answer with a whole number without any decimals. Do not include the unit of measurement in your answer.

(500, 500 mL, 500 mLs)

Nancy Nuss, RN reported off to you at 1500 that Mary Jenkins s IV in Room 101 was infusing at 125 mL/hr and that one liter of 0.9% NS was hung at 1200. When you make room rounds at 1600 that afternoon, _____ mL should be remaining (or left to be absorbed) in Miss Jenkins s IV. Answer with a whole number without any decimals. Do not include the unit of measurement in your answer.

*Calculate the flow rate in gtts/min per gravity system. * 60gtt/ml =6000gtt/hr 6000gtt/hr/60 min= 100gtt/min *Calculate the flow rate in ml/hr per infusion pump* 50x60=30000 30000/30

Ordered: 1 gm cefazolin (Ancef) IVPB q 8 hrs. Available: 1 gm cefazolin (Ancef) in 50 ml D5W Instructions: May run 1 gm over 30 minutes. Drop factor is 60gtts/ml.

25000 units / 5000 mL = 50 units/ml 50units/ml = 10000 units per hour /x ml 10000 units/50 units/ml = 20 ml/hr

Ordered: Heparin 25,000 units in 500 ml D5W. Give 1000 units per hour. Calculate ml/hr that you should set the infusion pump.

Vol/hr = Infusion rate Vol= 400 hr=0.5 (400 mL/ 0.5hr ) = 800 mL/hr

The physician orders 400 mL of 0.9% NS to infuse over 30 minutes. The nurse should set the infusion pump to run at ___ mL/hr? Answer as a whole number without any decimals. Do not include the unit of measurement in your answer.

(4,000 units/5,000 units) X (1 mL/hr) = 0.8ml

The physician orders 4000 units of Heparin SC to a patient. The stock dose available is a uni-dose vial containing 5,000 units/mL. The nurse should give ___mL with each dose? Respond with a decimal in your answer and write answer based on best practice and agency protocols to ensure a safe dose. Do not include units of measurement in your answer.

500mL x 20 / 360= 27.7 , or 28 gtt/min

The physician orders an IV infusion of D5W 500 mL to infuse over the next 6 hours. The IV tubing that you are using delivers 20 gtt/mL. The nurse should adjust the flow rate at________ gtt/min. Write your answer as a whole number without decimals. Do not include units of measurement in your answer. Use correct math rules when rounding. For example, if 0.5 or above, round up. If less than 0.5, round down.

25,000 units/500mL = 50 75x18=1,350 1350/50= 27 mL/hr

Your patient has a DVT is ordered for a heparin infusion to start at 18 units/kg/hour per the practitioner's order. His weight is 75kg. The heparin infusion comes in a 500ml bag with 25,000 units. Calculate the starting rate of the infusion (ml/hour).