A patient is ordered a continuous heparin infusion 18 units/kg/hr. The patient weighs 220 lbs. The medication is supplied as 25.000 units/250 ml. At what rate should the nurse set the pump?
The Correct Answer is ["18"]
To calculate the infusion rate, we'll follow these steps:
Convert patient weight to kilograms:
220 lbs ÷ 2.2 lbs/kg = 100 kg
Calculate desired heparin dose:
18 units/kg/hr × 100 kg = 1800 units/hr
Determine infusion rate in mL/hr:
(1800 units/hr) / (25000 units/250 mL) = 18 mL/hr
Nursing Test Bank
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Related Questions
Correct Answer is ["115"]
Explanation
To determine the IV pump rate, let’s follow these steps:
Reconstitute the medication:
The concentration after reconstitution is 1 Gm/10 mL.
Since 1 Gm = 1000 mg, the concentration is 100 mg/mL.
Calculate the volume needed for the required dose:
The patient needs 1500 mg.
Using the concentration, calculate the volume: 1500/100= 15 mL
Further dilute the medication:
Add the 15 mL of reconstituted medication to 100 mL of normal saline solution (NSS).
Total volume to be infused = 15 mL + 100 mL = 115 mL.
Set the IV pump rate:
The medication is to be infused over one hour.
Therefore, the IV pump rate is: 115/1= 115 mL/ hr
Correct Answer is ["2525"]
Explanation
To calculate the total intake, we'll add up the volumes of all fluids the client received during the past 9 hours:
Lactated Ringer's IV:
150 mL/hr × 9 hrs = 1350 mL
Cefazolin:
100 mL (intermittent bolus)
Packed RBCs:
250 mL +275 mL = 525 mL
IV bolus infusions:
2 × 250 mL = 500 mL
Ranitidine:
50 mL (intermittent bolus)
Total intake:
1350 mL + 100 mL + 525 mL + 500 mL + 50 mL = 2520 mL
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