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Ati Dosage calculations RN adult medical proctored assessment 3.1
Total Questions : 32
Showing 10 questions, Sign in for moreA nurse is preparing to administer gentamicin 5 mg/kg via intermittent IV bolus to a client who weighs 210 lb. The amount available is gentamicin 10 mg/mL. How many mL should the nurse administer? (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 dose of gentamicin, we need to convert the client's weight from pounds to kilograms.
One pound is equal to 0.454 kg, so 210 lb is equal to 95.34 kg.
Then, we multiply the weight by the dosage to get the dose in mg.
The dosage is 5 mg/kg, so the dose is 95.34 kg x 5 mg/kg = 476.7 mg.
To find the volume in mL, we divide the dose by the concentration of the medication.
The concentration is 10 mg/mL, so the volume is 476.7 mg / 10 mg/mL = 47.67 mL.
We round this to the nearest whole number, which is 48 mL.
Therefore, the nurse should administer 48 mL of gentamicin to the client.
A nurse is preparing to administer ondansetron 0.15 mg/kg IV to a client who weighs 132 lb. Available is ondansetron 2 mg/mL. How many mL should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
Explanation
To calculate the dose of ondansetron, we need to convert the client's weight from pounds to kilograms.
One pound is equal to 0.454 kg, so 132 lb is equal to 59.928 kg.
Then, we multiply the weight by the dosage to get the dose in mg.
The dosage is 0.15 mg/kg, so the dose is 59.928 kg x 0.15 mg/kg = 8.9892 mg.
To find the volume in mL, we divide the dose by the concentration of the medication.
The concentration is 2 mg/mL, so the volume is 8.9892 mg / 2 mg/mL = 4.4946 mL.
We round this to the nearest tenth, which is 4.5 mL. Therefore, the nurse should administer 4.5 mL of ondansetron to the client.
A nurse is preparing to administer pentamidine 4 mg/kg IM to a client who weighs 154 lb. Available is pentamidine 100 mg/mL for injection. How many mL should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
Explanation
To calculate the dose of pentamidine, we need to convert the client's weight from pounds to kilograms.
One pound is equal to 0.454 kg, so 154 lb is equal to 69.916 kg.
Then, we multiply the weight by the dosage to get the dose in mg.
The dosage is 4 mg/kg, so the dose is 69.916 kg x 4 mg/kg = 279.664 mg.
To find the volume in mL, we divide the dose by the concentration of the medication.
The concentration is 100 mg/mL, so the volume is 279.664 mg / 100 mg/mL = 2.79664 mL.
We round this to the nearest tenth, which is 2.8 mL.
Therefore, the nurse should administer 2.8 mL of pentamidine to the client.
To calculate the dose of pentamidine, we need to convert the client's weight from pounds to kilograms.
One pound is equal to 0.454 kg, so 154 lb is equal to 69.916 kg.
Then, we multiply the weight by the dosage to get the dose in mg.
The dosage is 4 mg/kg, so the dose is 69.916 kg x 4 mg/kg = 279.664 mg.
To find the volume in mL, we divide the dose by the concentration of the medication.
The concentration is 100 mg/mL, so the volume is 279.664 mg / 100 mg/mL = 2.79664 mL.
We round this to the nearest tenth, which is 2.8 mL.
Therefore, the nurse should administer 2.8 mL of pentamidine to the client.
To calculate the dose of pentamidine, we need to convert the client's weight from pounds to kilograms.
One pound is equal to 0.454 kg, so 154 lb is equal to 69.916 kg.
Then, we multiply the weight by the dosage to get the dose in mg.
The dosage is 4 mg/kg, so the dose is 69.916 kg x 4 mg/kg = 279.664 mg.
To find the volume in mL, we divide the dose by the concentration of the medication.
The concentration is 100 mg/mL, so the volume is 279.664 mg / 100 mg/mL = 2.79664 mL.
We round this to the nearest tenth, which is 2.8 mL.
Therefore, the nurse should administer 2.8 mL of pentamidine to the client.
A nurse is preparing to administer rifampin 20 mg/kg/day PO in two divided doses to a client who weighs 132 lb and has tuberculosis. The amount available is rifampin 150 mg capsules. How many capsules should the nurse administer per dose? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
Explanation
Step 1: Convert the client's weight from pounds to kilograms.
132 lbs ÷ 2.2 = 60 kg
Result = 60 kg
Step 2: Calculate the total daily dose of rifampin in mg.
20 mg/kg/day × 60 kg = 1200 mg/day
Result = 1200 mg/day
Step 3: Determine the dose per administration (since the dose is divided into two doses per day).
1200 mg/day ÷ 2 = 600 mg/dose
Result = 600 mg/dose
Step 4: Calculate the number of capsules needed per dose.
600 mg/dose ÷ 150 mg/capsule = 4 capsules
Result = 4 capsules
Therefore, the nurse should administer 4 capsules per dose.
A nurse is preparing to administer amoxicillin 750 mg PO. Available is amoxicillin liquid suspension 250 mg/5 mL. How many mL should the nurse administer? (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 volume of amoxicillin liquid suspension, we need to use the following equation: Volume = Dose / Concentration.
The dose is 750 mg, and the concentration is 250 mg/5 mL.
Therefore, the volume is 750 mg / (250 mg/5 mL) = 3 x 5 mL = 15 mL.
We round this to the nearest whole number, which is 15 mL.
Therefore, the nurse should administer 15 mL of amoxicillin liquid suspension to the client.
A nurse is preparing to administer tobramycin 3 mg/kg/day IM in three divided doses to a client who weighs 85 kg. The amount available is tobramycin 40 mg/mL. How many mL should 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 dose of tobramycin, we need to multiply the client's weight by the dosage to get the dose in mg per day.
The weight is 85 kg, and the dosage is 3 mg/kg/day, so the dose is 85 kg x 3 mg/kg/day = 255 mg/day.
To find the dose per dose, we divide the dose per day by three, since the medication is given in three divided doses.
The dose per dose is 255 mg/day / 3 = 85 mg/dose.
To find the volume in mL, we divide the dose per dose by the concentration of the medication.
The concentration is 40 mg/mL, so the volume is 85 mg/dose / 40 mg/mL = 2.125 mL/dose.
We round this to the nearest tenth, which is 2.1 mL/dose.
Therefore, the nurse should administer 2.1 mL of tobramycin per dose to the client.
A nurse is preparing to administer morphine 7.5 mg subcutaneous. Available is morphine injection 10 mg/mL. How many mL should the nurse administer? (Round the answer to the nearest hundredth. Use a leading zero if it applies. Do not use a trailing zero.)
Explanation
To calculate the volume of morphine injection, we need to use the following equation: Volume = Dose / Concentration.
The dose is 7.5 mg, and the concentration is 10 mg/mL.
Therefore, the volume is 7.5 mg / (10 mg/mL) = 0.75 mL.
We round this to the nearest hundredth, which is 0.75 mL.
Therefore, the nurse should administer 0.75 mL of morphine injection to the client
A nurse is preparing to administer enoxaparin 40 mg subcutaneous for prevention of deep vein thrombosis. Available is enoxaparin 100 mg/mL. How many mL should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
Explanation
To calculate the volume of enoxaparin, we need to use the following equation: Volume = Dose / Concentration.
The dose is 40 mg, and the concentration is 100 mg/mL.
Therefore, the volume is 40 mg / (100 mg/mL) = 0.4 mL.
We round this to the nearest tenth, which is 0.4 mL.
Therefore, the nurse should administer 0.4 mL of enoxaparin to the client.
A nurse is preparing to administer amoxicillin 775 mg PO. Available is amoxicillin oral suspension 400 mg/5 mL. How many mL should the nurse administer? (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 volume of amoxicillin oral suspension, we need to use the following equation: Volume = Dose / Concentration.
The dose is 775 mg, and the concentration is 400 mg/5 mL.
Therefore, the volume is 775 mg / (400 mg/5 mL) = 1.9375 x 5 mL = 9.6875 mL.
We round this to the nearest whole number, which is 10 mL.
Therefore, the nurse should administer 10 mL of amoxicillin oral suspension to the client.
A nurse is preparing to administer 0.45% sodium chloride 2.5 L IV to infuse over 24 hours. How many mL should the nurse administer? (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 volume of 0.45% sodium chloride, we need to use the following equation: Volume = Rate x Time.
The rate is the amount of fluid to be infused per hour, and the time is the duration of infusion in hours.
The amount of fluid is 2.5 L, and the duration is 24 hours.
Therefore, the rate is 2.5 L / 24 hours = 0.104 L/hour.
To convert liters to milliliters, we multiply by 1000.
Therefore, the volume is 0.104 L/hour x 1000 mL/L = 104 mL/hour.
We round this to the nearest whole number, which is 104 mL.
Therefore, the nurse should administer 104 mL of 0.45% sodium chloride per hour to the client.
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