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Ati dosage calculation rn medical surgical proctored assessment 3.1
Total Questions : 30
Showing 10 questions, Sign in for moreA nurse is preparing to administer hydrochlorothiazide 150 mg PO daily in 3 equally divided doses. Available is hydrochlorothiazide oral solution is 50 mg/5 mL. How many mL 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
Determine the single dose:
Total daily dose = 150 mg
Divided into 3 equal doses = 150 mg / 3 = 50 mg per dose
Determine the volume to administer:
Available concentration = 50 mg/5 mL
Desired dose = 50 mg
Volume to administer = (Desired dose / Available concentration) * Volume per dose
Volume to administer = (50 mg / 50 mg/mL) * 5 mL = 5 mL
Therefore, the nurse should administer 5 mL per dose.
A nurse is preparing to administer phenytoin 200 mg via a gastrostomy tube. Available is phenytoin oral suspension 125 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
Desired dose: 200 mg
Available concentration: 125 mg/5 mL
To find the volume to administer, we can use the following formula:
Volume to administer (mL) = Desired dose (mg) / Concentration (mg/mL) * Volume per dose
Volume to administer = (200 mg / 125 mg/mL) * 5 mL = 8 mL
Therefore, the nurse should administer 8 mL of phenytoin oral suspension.
A nurse is preparing to administer methylprednisolone sodium succinate 30 mg/kg via intermittent IV bolus to a client who weighs 169 lb. Available is methylprednisolone sodium succinate 125 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
Step 1: Convert pounds to kilograms
1 lb = 0.453592 kg
169 lb * 0.453592 kg/lb = 76.65 kg
Step 2: Calculate the total dose of methylprednisolone
Dose = 30 mg/kg * 76.65 kg = 2299.5 mg
Step 3: Calculate the volume to administer
The medication concentration is 125 mg/mL.
Volume = Total dose / Concentration = 2299.5 mg / 125 mg/mL = 18.396 mL
Step 4: Round to the nearest whole number
Volume = 18 mL
Therefore, the nurse should administer 18 mL of methylprednisolone sodium succinate.
A 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
Step 1: Convert pounds to kilograms
1 lb = 0.453592 kg
210 lb * 0.453592 kg/lb = 95.25 kg
Step 2: Calculate the total dose of gentamicin
Dose = 5 mg/kg * 95.25 kg = 476.25 mg
Step 3: Calculate the volume to administer
The medication concentration is 10 mg/mL.
Volume = Total dose / Concentration = 476.25 mg / 10 mg/mL = 47.625 mL
Step 4: Round to the nearest whole number
Volume = 48 mL
Therefore, the nurse should administer 48 mL of gentamicin.
A nurse is preparing to administer clindamycin 1,200 mg IV bolus over 1 hr to a client who is allergic to penicillin. Available is clindamycin 1,200 mg in dextrose 5% in water 100 mL. The drop factor on the manual IV tubing is 15 gtt/mL. The nurse should set the flow rate to deliver how many gtt/min? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
Explanation
Convert hours to minutes:
1 hour = 60 minutes
Calculate the total number of drops:
Total drops = volume (mL) * drop factor (gtt/mL) = 100 mL * 15 gtt/mL = 1500 gtt
Calculate the flow rate:
Flow rate (gtt/min) = Total drops / Total minutes = 1500 gtt / 60 min = 25 gtt/min
Therefore, the nurse should set the flow rate to 25 gtt/min.
A nurse is preparing to administer megestrol 200 mg PO to a client. Available is megestrol oral suspension 40 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
Understanding the problem
We need to administer 200 mg of megestrol.
The available medication is a suspension with a concentration of 40 mg/mL.
We need to determine the volume to administer.
Step-by-step calculation
Use the formula:
Volume (mL) = Desired dose (mg) / Concentration (mg/mL)
Substitute the values:
Volume (mL) = 200 mg / 40 mg/mL
Calculate the volume:
Volume (mL) = 5 mL
Therefore, the nurse should administer 5 mL of megestrol oral suspension.
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
Understanding the problem
We need to administer 40 mg of enoxaparin.
The available medication is a solution with a concentration of 100 mg/mL.
We need to determine the volume to administer.
Step-by-step calculation
Use the formula:
Volume (mL) = Desired dose (mg) / Concentration (mg/mL)
Substitute the values:
Volume (mL) = 40 mg / 100 mg/mL
Calculate the volume:
Volume (mL) = 0.4 mL
Therefore, the nurse should administer 0.4 mL of enoxaparin.
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
nderstanding the problem
We need to administer 775 mg of amoxicillin.
The available medication is a suspension with a concentration of 400 mg/5 mL.
We need to determine the volume to administer.
Step-by-step calculation
Use the formula:
Volume (mL) = Desired dose (mg) / Concentration (mg/mL)
Substitute the values:
Volume (mL) = 775 mg / (400 mg/5 mL)
Simplify the equation:
Volume (mL) = (775 mg * 5 mL) / 400 mg
Calculate the volume:
Volume (mL) = 3875 mL / 400 = 9.6875 mL
Round to the nearest whole number:
Volume (mL) = 10 mL
Therefore, the nurse should administer 10 mL of amoxicillin oral suspension.
A nurse is preparing to administer cefazolin 1 g intermittent IV bolus in 0.9% sodium chloride 250 mL over 30 min. The drop factor on the manual IV tubing is 10 gtt/mL. The nurse should set the manual IV flow rate to deliver how many gtt/min? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
Explanation
Understanding the problem
We need to administer 250 mL of cefazolin over 30 minutes.
The drop factor of the IV tubing is 10 gtt/mL.
We need to determine the flow rate in drops per minute (gtt/min).
Step-by-step calculation
Convert minutes to hours:
30 minutes = 0.5 hours
Calculate the flow rate in mL/hour:
Flow rate (mL/hour) = Total volume (mL) / Total time (hours) = 250 mL / 0.5 hours = 500 mL/hour
Calculate the flow rate in gtt/min:
Flow rate (gtt/min) = Flow rate (mL/hour) * Drop factor (gtt/mL) / 60 min/hour = 500 mL/hour * 10 gtt/mL / 60 min/hour = 83.33 gtt/min
Round to the nearest whole number:
Flow rate (gtt/min) = 83 gtt/min
Therefore, the nurse should set the manual IV flow rate to 83 gtt/min.
A nurse is preparing to administer voriconazole 6 mg/kg via intermittent IV bolus to a client who weighs 127 lb. Available is voriconazole 5 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)
Explanation
Step-by-step solution:
1. Convert pounds to kilograms:
1 lb = 0.453592 kg
127 lb * 0.453592 kg/lb = 57.61 kg
2. Calculate the total dose of voriconazole:
Dose = 6 mg/kg * 57.61 kg = 345.66 mg
3. Calculate the volume to administer:
The medication concentration is 5 mg/mL.
Volume = Total dose / Concentration = 345.66 mg / 5 mg/mL = 69.132 mL
4. Round to the nearest whole number:
Volume = 69 mL
Therefore, the nurse should administer 69 mL of voriconazole.
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