A nurse is preparing to administer potassium chloride elixir 40 mEq divided into 2 equal doses every 12 hr. Available is 6.7 mEq/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.)
The Correct Answer is ["15"]
Calculate the single dose: 40 mEq / 2 doses = 20 mEq/dose
Calculate the volume: 20 mEq X (5 mL / 6.7 mEq) = 14.93 mL
Round to the nearest whole number: 15 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["100"]
Explanation
To calculate the IV pump rate in mL/hr, follow these steps:
Total volume to be infused: 50 mL
Infusion time: 30 minutes
Convert the infusion time to hours:
30 minutes ÷ 60 minutes/hour = 0.5 hours
Calculate the IV pump rate:
Rate (mL/hr) = Total volume (mL) ÷ Infusion time (hours)
Rate = 50 mL ÷ 0.5 hours = 100 mL/hr
The nurse should set the IV pump to deliver 100 mL/hr.
Correct Answer is ["0.8"]
Explanation
Desired dose = 30 mg
Available concentration = 40 mg/mL
To calculate the volume to administer, use the formula:
Volume (mL) = Desired dose (mg) / Concentration (mg/mL)
Volume = 30 mg / 40 mg/mL = 0.75 mL
Rounded to the nearest tenth, the nurse should administer 0.8 mL of enoxaparin.
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