MD order: erythromycin 500mg Q8 hours, the pharmacy sent 250mg/mL. How much will you give?
10 mLs
500 mLs
2 mLs
250 mLs
The Correct Answer is C
A. This is incorrect
B. This is incorrect
C. Step 1: Identify what is given
Prescribed dose: 500 mg
Available concentration: 250 mg/mL
Step 2: Use the formula
Volume (mL) = Prescribed dose ÷ Concentration
Volume = 500 ÷ 250 = 2 mL
D. This is incorrect
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["120"]
Explanation
Step 1: Identify what is given
Flow rate = 120 mL/hr
Drop factor = 60 gtt/mL
Step 2: Convert flow rate to mL/min
120 mL/hr ÷ 60 = 2 mL/min
Step 3: Calculate gtt/min
gtt/min = mL/min × drop factor
gtt/min = 2 × 60 = 120 gtt/min
Final Answer:
The nurse should set the IV flow rate to 120 gtt/min
Correct Answer is ["2"]
Explanation
Step 1: Identify what is given
Prescribed dose: 0.2 mg
Available tablet strength: 0.1 mg per tablet
Step 2: Calculate the number of tablets
Number of tablets = Prescribed dose ÷ Tablet strength
Number of tablets = 0.2 ÷ 0.1 = 2
Final Answer:
The nurse should administer 2 tablets of clonidine.
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