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Ati N300 math retake
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Showing 10 questions, Sign in for moreA nurse is caring for a client who is postoperative hip arthroplasty and has a new prescription for drug E 1mg/kg/dose subcutaneous every 12 hr. The client weighs 191 lbs. How many mg 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
Convert the client's weight from pounds to kilograms
1 pound (lb) = 0.453592 kilograms (kg)
191 lbs × 0.453592 kg/lb= 86.636072 kg
Calculate the dosage in milligrams (mg)
The prescription is 1 mg/kg/dose.
86.636072 kg × 1 mg/kg = 86.636072 mg
Round the answer to the nearest tenth
86.636072 mg to the nearest tenth is 86.6 mg.
A nurse is preparing to administer vancomycin 15 mg/kg/day divided equally every 12 hr. The client weighs 198 lb. How many miligrams will the patient receive in 24 hours? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
Explanation
Convert the client's weight from pounds to kilograms
1 pound (lb) = 0.453592 kilograms (kg)
198 lbs × 0.453592 kg/lb = 89.811216 kg
Calculate the total daily dosage (24 hours)
The prescription is 15 mg/kg/day.
89.811216 kg × 15 mg/kg = 1347.16824 mg
Rounded to the nearest whole number
=1347 mg.
A nurse is caring for a client who is postoperative following knee arthroplasty and has a new prescription for enoxaparin 1mg/kg/dose subcutaneous every 12 hr. The client weighs 185 lb. How many mg should the nurse administer per dose? (Round the answer to the nearest whole number/tenth. Use a leading zero if it applies. Do not use a trailing zero.)
Explanation
Convert the client's weight from pounds to kilograms:
1 pound (lb) = 0.453592 kilograms (kg)
185 lbs × 0.453592 kg/lb = 83.91452 kg
Calculate the dosage in milligrams (mg)
The prescription is 1 mg/kg/dose.
83.91452 kg × 1 mg/kg
= 83.91452 mg
Round the answer to the nearest whole number
= 84 mg.
A nurse is caring for a client who has a new prescription for drug N 1.5mg/kg/dose IV every 12 hr. The client weighs 82 kg. How many milligrams 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
Calculate the dosage in milligrams (mg)
The prescription is 1.5 mg/kg/dose.
The client weighs 82 kg.
82 kg ×1.5 mg/kg
= 123 mg
A nurse is preparing to administer penicillin G benzathine 1.4 million units IM now. The amount available is penicillin G benzathine 600,000 units/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
Formula:
Volume to Administer = Desired Dose / Available Concentration
Desired Dose: 1,400,000 units
Available Concentration: 600,000 units/mL
Volume to Administer = 1,400,000 units / 600,000 units/mL
= 2.3333 mL
Rounded to the nearest tenth: 2.3 mL
A nurse is caring for a client who has pneumonia and a prescription for cefpodoxime 5 mg/kg PO every 12 hr for 5 days. The client weighs 178 lb. How many mg 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
Convert the client's weight from pounds to kilograms
Convert lbs to kg: weight (kg) = weight (lbs) x 0.453592
= 178 lb x 0.453592 kg/lb
= 80.739376 kg
Calculate the dosage in milligrams (mg)
dosage (mg) = weight (kg) x dosage (mg/kg)
= 80.739376 kg x 5 mg/kg
= 403.69688 mg
Rounded the answer to the nearest tenth
403.7 mg
A nurse is preparing to administer amoxicillin 2 gm/day PO divided into two doses. The amount available in amoxicillin 500 mg tablets, How many tablets should the nurse administer with each dose? (Round the answer to the nearest whole number/tenth. Use a leading zero if it applies. Do not use a trailing zero.)
Explanation
Convert grams to milligrams: 1g = 1000mg
2 g ×1000 mg/g
= 2000 mg
Calculate the dose per administration
dose per administration = total daily dose / number of doses
= 2000 mg / 2 doses
= 1000 mg/dose
Calculate the number of tablets
number of tablets = dose per administration / tablet strength
=1000 mg/dose / 500 mg/tablet
= 2 tablets/dose
A nurse is preparing to administer 40 mEq of potassium chloride in 45% sodium chloride (NaCl) 500 mL IV to infuse 10 mEq/hr. The nurse should set the IV pump to deliver how many mL/hr? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
Explanation
Calculate the total infusion time
Total infusion time (hr) = Total mEq / Infusion rate (mEq/hr)
= 40 mEq / 10 mEq/hr
= 4 hours
Calculate the infusion rate in mL/hr:
Infusion rate (mL/hr) = Total volume (mL) / Total infusion time (hr)
=500 mL / 4 hours
= 125 mL/hr
A nurse is preparing to administer a continuous heparin infusion at 1600 units/hr. Available is heparin 25,000 units in dextrose 5% in water (DSW) 500 mL. The nurse should set the IV pump to deliver how many mL/hr? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
Explanation
Formula:
Volume (mL/hr) = (Desired Units/hr × Total Volume (mL)) / Available Units
Desired Units/hr: 1600 units/hr
Total Volume (mL): 500 mL
Available Units: 25,000 units
Volume(mL/hr) = (1600 units/hr × 500 mL) / 25,000 units
= 32 mL/hr
A nurse is preparing to administer ampicillin 500 mg via intermittent IV bolus over 30 min. Available is 500 mg ampicillin in 50 mL dextrose 5% in water (D5W). The nurse should set the pump to deliver how many mL/hr? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
Explanation
Formula:
Flow Rate (mL/hr) = (Total Volume (mL) / Infusion Time (min)) × 60 min/hr
Total Volume: 50 mL
Infusion Time: 30 minutes
Flow Rate = (50 mL / 30 min) × 60 min/hr
= 100 mL/hr
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