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Ati dosage calculation n200 retake
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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 weighs 176lbs. Heparin is supplied in 50000 units/500mL. At what rate will the nurse set the pump?
Explanation
1. Convert pounds to kilograms:
176 lbs/2.20462 kg =80 kg
2. Calculate the desired heparin infusion rate:
16 units/kg/hr x 80kg = 1280 units/hr
3. Determine the concentration of heparin in the solution:
50000 units / 500 mL = 100 units/mL
4. Calculate the infusion rate in millilitres per hour:
1280 units/hr / 100 units/mL =12.8 mL/hr
A patient is ordered medication 100units/kg SQ. The medication is supplied in 10000 units/mL The patient weighs 220 lbs. What should the nurse administer?
Explanation
Let's calculate the dosage step-by-step:
1. Convert pounds to kilograms:
220 lbs/2.20462 kg = 99.8 kg
2. Calculate the total dosage:
100 units/kg x 99.8 kg = 9980units
3. Determine the concentration of the medication:
10000 units/mL
4. Calculate the volume needed:
9980 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 150ml/hr, cefazolin 2g IV intermittent bolus in 100ml of 0.9% sodium chloride, two units of packed RBCs of 275ml and 250ml, two IV infusions of 250ml 0.9% sodium chloride, Ranitidine 50mg IV intermittent bolus in 50ml dextrose 5% in water. How many ml of intake should the nurse record?
Explanation
Here's the calculation of the total intake:
IV fluids:
Lactated Ringer's IV: 150 ml/hr x 9 hrs = 1350 ml
Cefazolin: 100 ml
0.9% sodium chloride (2 units): 250 ml x 2 = 500 ml
Ranitidine: 50 ml
Packed RBCs:
275 ml + 250 ml = 525 ml
Total intake:
1350 ml + 100 ml + 500 ml + 50 ml + 525 ml = 2525 ml
The doctor orders medication S2.5 mg/kg/day in two divided doses. Medication S is supplied 40mg/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
Let's calculate the dosage step-by-step:
1. Convert pounds to kilograms:
121 lbs/ 2.20462 kg = 54.9 kg
2. Calculate the total daily dosage:
2.5 mg/kg/day x 54.9 kg = 137.25 mg/day
3. Calculate the dosage per dose (divided equally twice daily):
137.33 mg/day / 2 doses ≈ 68.625 mg/dose
4. Determine the concentration of the medication:
40 mg/mL
5. Calculate the volume needed:
68.67 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 a cup of juice, 3 oz of gelatine, 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
Here's how we calculated that:
Juice: 1/2 cup = 120 mL
Gelatine: 3 oz = 90 mL
Ice pop: 1 oz = 30 mL
Total: 120 mL + 90 mL + 30 mL + 20 mL = 260
A patient is ordered 40 units/kg IV bolus of Heparin. The patient weighs 154 lbs. Heparin is supplied 25000 units/250mL. How many mL will the nurse administer?
Explanation
Let's calculate the dosage step-by-step:
1. Convert pounds to kilograms:
154 lbs x 2.2 kg = 70 kg
2. Calculate the total dosage:
40 units/kg x 70kg = 2800 units
3. Determine the concentration of heparin in the solution:
25000 units / 250 mL = 100 units/mL
4. Calculate the volume needed:
2800 units / 100 units/mL ≈ 28 mL
A patient is to receive 1500mg of an anti-infective agent IV. 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 via instructions state to further dilute the medication with 100mL of NS and infuse over one hour At what rate will the nurse set the IV pump?
Explanation
Let's calculate the IV pump rate step-by-step:
1. Determine the total volume to be infused:
The medication is initially reconstituted to a concentration of 1 g/10 mL.
To obtain 1500 mg (or 1.5 g), we need 1.5 g * 10 mL/g = 15 mL.
After further dilution with 100 mL of NSS, the total volume becomes 15 mL + 100 mL = 115 mL.
2. Determine the infusion rate:
The infusion time is given as 1 hour.
To calculate the infusion rate, divide the total volume by the infusion time:
115 mL / 1 hour = 115 mL/hour
A client is to receive antibiotics 1,000,000 units IV. Package instructions are to mix the medication with enough sterile water to yield a concentration of 250,000 units per 4mL. After withdrawing the required dose from the vial, package instruction are to further dilute in 100mL of IV fluid and run it over 1 hour. At what raet should the nurse set the IV pump?
Explanation
Let's calculate the IV pump rate step-by-step:
1. Determine the total volume of the medication:
The desired dosage is 1,000,000 units.
The concentration of the reconstituted medication is 250,000 units per 4 mL.
To find the total volume needed, divide the desired dosage by the concentration:
1,000,000 units / 250,000 units/4 mL = 4 x 4 mL = 16 mL
2. Calculate the final volume after dilution:
The reconstituted medication (16 mL) is further diluted with 100 mL of IV fluid.
The total volume after dilution is 16 mL + 100 mL = 116 mL.
3. Determine the infusion rate:
The infusion time is given as 1 hour.
To calculate the infusion rate, divide the total volume by the infusion time:
116 mL / 1 hour = 116 mL/hour
A nurse is preparing to administer antibiotics 15mg/kg/day divided equally every 12 hrs. The client weighs 158lbs. How many mg should the nurse administer with each dose? Round of to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.
Explanation
1. Convert pounds to kilograms: 1 pound = 0.453592
158 lbs x 0.453592 kg/lb ≈ 71.71 kg
2. Calculate the total daily dosage:
15 mg/kg/day x 71.71 kg ≈ 1075.65 mg/day
3. Calculate the dosage per dose (divided equally every 12 hours):
1075.65 mg/day / 2 doses ≈ 537.83 mg/dose
4. Round to the nearest whole number:
537.83 mg ≈ 538 mg
A patient is ordered a continuous heparin infusion 18 units/kg/hr. The patient weighs 220 lbs. The medication is supplied as 25000 units/250mL. At what rate should the nurse set the pump?
Explanation
To determine the correct IV pump rate for the heparin infusion, follow these steps:
1. Convert the patient’s weight from pounds to kilograms:
1 pound = 0.453592 kilograms
220 pounds x 0.453592 = 99.79 kilograms (rounded to two decimal places)
2. Calculate the dosage in units per hour:
18 units/kg/hr x 99.79 kg = 1796.22 units/hr
3. Determine the volume of heparin solution needed per hour:
The medication is supplied as 25000 units in 250 mL.
Therefore, the concentration is 100 units/mL.
1796.22 units/hr / 100 units/mL = 17.96 mL/hr
4. So, the nurse should set the IV pump to 18 mL/hour (rounded to the nearest whole number).
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