Based on your resulting solution strength, how many ml of Amoxicillin will you give to administer the ordered dose?
Check to make sure that you labeled all answers as to unit of measurement and route. Order: Amoxicillin 125mg PO q 8hrs
The Correct Answer is ["5"]
Desired dose = 125 mg.
Identify the available concentration from the label.
The label states: "each 5 ml will contain 125 mg".
= 125 mg/5 ml.
Calculate the volume to administer in milliliters (mL).
Volume (mL) = Desired Dose (mg) / Available Concentration (mg/mL)
Since the desired dose (125 mg) is exactly the amount contained in the available volume (5 mL), the calculation is:
Volume (mL) = 125 mg / (125 mg / 5 mL)
= 5 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Convert the child's weight from pounds (lb) to kilograms (kg).
Client weight: 42 lbs
1 kg = 2.2 lbs
Weight (kg) = 42 lbs / 2.2 lbs/kg
= 19.091 kg.
Calculate the single ordered dose in milligrams (mg/dose).
Ordered rate: 3 mg/kg/dose
Single dose (mg) = 3 mg/kg/dose x 19.091 kg
= 57.273 mg.
Determine the concentration of the available solution.
Available: 150 mg in 15 mL
Concentration (mg/mL) = 150 mg / 15 mL
= 10 mg/mL.
Calculate the volume to administer per single dose in milliliters (mL).
Volume (mL) = Single Dose (mg) / Concentration (mg/mL)
= 57.273 mg / 10 mg/mL
= 5.727 mL.
Round the answer to the nearest tenth.
= 5.7 mL.
Correct Answer is C
Explanation
A. The nurse reconstitutes the drug: Reconstituting a drug is part of preparation but does not prevent incompatibilities between sequentially administered medications. Proper flushing of the IV line is required to avoid interactions.
B. All IV medications are filtered with a 0.2-micron filter: While filters help remove particulates and bacteria, they do not prevent chemical or physical incompatibility between two drugs given in the same line.
C. The IV catheter is flushed with 0.9% saline between drug infusions: Flushing with normal saline clears the line of residual medication, preventing mixing of incompatible drugs in the IV catheter. This is the standard practice for reducing incompatibility risks in a saline lock.
D. The IV catheter is flushed with 5% dextrose in water between drug infusions: D5W is not the standard flushing solution and may itself cause compatibility problems. Normal saline is the preferred flush to maintain patency and reduce incompatibility risks.
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