How many ml of diluent must be added?
Check to make sure that you labeled all answers as to unit of measurement and route.
The Correct Answer is ["85"]
The medication label for Amoxicillin For Oral Suspension provides the reconstitution instructions: "Add 85 mL of sterile water for reconstitution, shake vigorously." The volume of diluent is the amount of liquid (sterile water) added to the powder to create the final solution.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["5"]
Explanation
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
Correct Answer is B
Explanation
Convert the child's weight from pounds (lb) to kilograms (kg).
Client weight: 33 lbs
1 kg = 2.2 lbs
Weight (kg) = 33 lbs / 2.2 lbs/kg
= 15 kg.
Calculate the single ordered dose in milligrams (mg/dose).
Total daily dose rate: 7.5 mg/kg/day
Dosing frequency: every 8 hours (3 doses per day)
Single dose (mg) = (7.5 mg/kg/day x 15 kg) / 3 doses/day
= 112.5 mg/day / 3 doses/day
= 37.5 mg/dose.
Determine the concentration of the available solution.
Available: 80 mg in 2 mL
Concentration (mg/mL) = 80 mg / 2 mL
= 40 mg/mL.
Calculate the volume to administer per single dose in milliliters (mL).
Volume (mL) = Single Dose (mg) / Concentration (mg/mL)
= 37.5 mg / 40 mg/mL
= 0.9375 mL.
Round the answer to the nearest hundredth.
= 0.94 mL.
A volume of 0.94 mL requires a syringe that can measure fractions of a milliliter accurately. The 1 mL syringe (Tuberculin syringe) is the standard and most precise choice for volumes less than 1 mL.
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