A nurse is preparing to administer chlorpromazine hydrochloride 40 mg IM to a client who has anorexia nervosa. Available is chlorpromazine hydrochloride injection 25 mg/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.)
The Correct Answer is ["1.6"]
Step-by-Step Calculation
Understanding the Problem
Desired dose: 40 mg of chlorpromazine hydrochloride
Available concentration: 25 mg/mL
Calculations
Calculate the volume to administer:
Volume (mL) = Desired dose (mg) / Concentration (mg/mL)
Volume = 40 mg / 25 mg/mL = 1.6 mL
The nurse should administer 1.6 mL of chlorpromazine hydrochloride.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["6"]
Explanation
Step-by-Step Calculation
Understanding the Problem
Total daily dose of phenelzine: 90 mg
Divided into 3 equal doses
Strength of each tablet: 15 mg
We need to find the total number of tablets per day.
Calculations
Calculate the dose per administration:
Dose per administration = Total daily dose / Number of doses
Dose per administration = 90 mg / 3 = 30 mg
Calculate the number of tablets per dose:
Tablets per dose = Dose per administration / Tablet strength
Tablets per dose = 30 mg / 15 mg/tablet = 2 tablets
The nurse should administer 2 tablets per day.
Since the client will receive 2 tablets per dose and will take 3 doses per day, the total number of tablets for the day is:
2 tablets/dose × 3 doses/day = 6 tablets/day
Correct Answer is ["0.5"]
Explanation
The nurse should administer 0.5 ml of ziprasidone injection.
Step-by-Step Calculation
Understanding the Problem
We need to administer 10 mg of ziprasidone.
The available concentration is 20 mg/ml.
We need to find out how many milliliters (ml) to administer.
Setting up the Equation
We can use the formula:
Desired dose (mg) = Concentration (mg/ml) X Volume (ml)
Calculating the Volume
We know the desired dose (10 mg) and the concentration (20 mg/ml). We need to findthe volume.
Rearranging the formula to solve for volume, we get:
Volume (ml) = Desired dose (mg) / Concentration (mg/ml)
Substituting the values:
Volume (ml) = 10 mg / 20 mg/ml = 0.5 ml
The nurse should administer 0.5 ml of ziprasidone injection.
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