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Ati dosage calculation n300 math day
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Showing 10 questions, Sign in for moreA patient is ordered a continuous heparin infusion at 16 units/kg/hr. The patient weight 176 lbs. Heparin is supplied 50.000 units/500 mL. At what rate will the nurse set the pump?
Explanation
To calculate the infusion rate, we'll follow these steps:
Convert patient weight to kg:
176 lbs ÷ 2.2 lbs/kg = 80 kg
Calculate desired heparin dose:
16 units/kg/hr × 80 kg = 1280 units/hr
Determine infusion rate in mL/hr:
(1280 units/hr) / (50000 units/500 mL) = 12.8 mL/hr
A patient is ordered medication 100 units/kg SQ. The medication is supplied 10.000units/mL. The patient weighs 220 lbs. What should the nurse administer?
Explanation
To calculate the medication dosage, we'll follow these steps:
Convert patient weight to kilograms:
220 lbs ÷ 2.2 lbs/kg = 100 kg
Determine the total medication dose:
100 units/kg × 100 kg = 10000 units
Calculate the volume to be administered:
10000 units ÷ 10000 units/mL = 1 mL
A nurse is calculating the intake of a client during the past 9 hrs. The client's intake includes lactated Ringer's IV at 150 mL/hr. cefazolin 2 g IV Intermittent bolus in 100 mL of 0.9% sodium chloride, two units of packed RBCs of 275 mL and 250 mL; two IV bolus infusions of 250 mL of 0.9% sodium chloride, ranitidine 50 mg IV intermittent bolus in 50 ml of dextrose 5% in water. How many mL of intake should the nurse record?
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
The doctor orders medication S 2.5 mg/kg/day in two divided doses. Medication S is supplied 40 mg/mL. The patient weighs 121 lbs. What will the nurse administer per dose? (Round the answer to the nearest tenth. Use a leading zero If It applies. Do not use a trailing zero.)
Explanation
To calculate the medication dosage, we'll follow these steps:
Convert patient weight to kilograms:
121 lbs ÷ 2.2 lbs/kg = 55 kg
Determine the total daily dosage:
2.5 mg/kg/day × 55 kg = 137.5 mg/day
Calculate the dosage per dose:
137.5mg/day ÷ 2 doses = 68.75 mg/dose
Determine the volume to be administered:
68.75 mg ÷ 40 mg/mL = 1.7 mL
A nurse is caring for a child who is on a clear liquid diet. At lunch, the child consumed 1⁄2 cup of juice. 3 oz gelatin. 1 oz of an ice pop, and 20 mL ginger ale. How many mL should the nurse record as the child's fluid Intake?
Explanation
To calculate the total fluid intake, we'll need to convert all the volumes to a common unit (mL).
Juice:
½ cup = 120 mL (assuming a standard 8-ounce cup)
Gelatin:
3 oz = 90 mL (1 ounce is approximately 30 mL)
Ice pop:
1 oz = 30 mL
Ginger ale:
20 mL
Total intake:
120 mL + 90 mL + 30 mL + 20 mL = 260 mL
A patient is ordered 40 unit/kg IV bolus of Heparin. The patient weighs 154 lbs. Heparin is supplied 25.000 units/250 mL. How many mL will the nurse administer?
Explanation
To calculate the medication dosage, we'll follow these steps:
Convert patient weight to kilograms:
154 lbs ÷ 2.2046 lbs/kg = 69.84 kg
Determine the total medication dose:
40 units/kg × 69.84 kg = 2793.6 units
Calculate the volume to be administered:
2793.6 units ÷ 25000 units/250 mL = 2.8 mL
A patient is to receive 1500 mg of an anti-infective agent IVPB. Pharmacy sends a vial with instructions to reconstitute with enough sterile water to yield a concentration of 1 Gm/10 mL. After withdrawing the required dose from the vial, Instructions state to further dilute the medication with 100 mL of NSS and infuse over one hour. At what rate will the nurse set the IV pump?
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
A client is to receive Antibiotics 1,000,000 units IVPB. Package Instructions are to mix the medication with enough sterile water to yield a concentration of 250,000 units per 4 mL. After withdrawing the required dose from the vial, package Instructions are to further dilute it in 100 mL of IV fluid and run it over 1 hour. At what rate should the nurse set the IV pump?
Explanation
To calculate the IV pump rate, we'll follow these steps:
Determine the required volume of the reconstituted medication:
1,000,000 units ÷ 250,000 units/4 mL = 16 mL
Determine the total volume to be administered:
16 mL (reconstituted volume) + 100 mL (dilution with IV fluid) = 116 mL
Calculate the infusion rate:
116 mL ÷ 1 hour = 116 mL/hour
A nurse is preparing to administer antibiotics 15 mg/kg/day divided equally every 12 hr. The client weighs 158 lb. How many mg should the nurse administer with each dose? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
Explanation
To calculate the medication dosage, we'll follow these steps:
Convert patient weight to kilograms:
158 lbs ÷ 2.2 lbs/kg = 71.8 kg
Determine the total daily dosage:
15 mg/kg/day × 71.8 kg = 1077 mg/day
Calculate the dosage per dose:
1077 mg/day ÷ 2 doses = 538. 5mg/dose
Round to the nearest whole number: 539 mg
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?
Explanation
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
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