A caring for a client who has schizophrenia and is experiencing hallucinations. The provider prescribes chlorpromazine 50 mg IM every 4 hr as needed. Available is chlorpromazine injection 25 mg/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 ["2"]
Given:
Desired dose: Chlorpromazine 50 mg IM
Available concentration: Chlorpromazine injection 25 mg/mL
To find:
Volume to administer per dose (in mL)
Step 1: Set up the proportion
We can use the following proportion to solve the problem:
(Desired dose) / (Available concentration) = Volume to administer
Step 2: Substitute the values
Plugging in the given values, we get:
(50 mg) / (25 mg/mL) = Volume to administer
Step 3: Simplify
To simplify, we can invert the denominator and multiply:
(50 mg) x (1 mL / 25 mg) = Volume to administer
The "mg" units cancel out, leaving us with:
(50 x 1 mL) / 25 = Volume to administer
Step 4: Calculate
Performing the multiplication and division, we get:
50 mL / 25 = Volume to administer
2 mL = Volume to administer
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["2"]
Explanation
Given:
Desired dose: Chlorpromazine 50 mg IM
Available concentration: Chlorpromazine injection 25 mg/mL
To find:
Volume to administer per dose (in mL)
Step 1: Set up the proportion
We can use the following proportion to solve the problem:
(Desired dose) / (Available concentration) = Volume to administer
Step 2: Substitute the values
Plugging in the given values, we get:
(50 mg) / (25 mg/mL) = Volume to administer
Step 3: Simplify
To simplify, we can invert the denominator and multiply:
(50 mg) x (1 mL / 25 mg) = Volume to administer
The "mg" units cancel out, leaving us with:
(50 x 1 mL) / 25 = Volume to administer
Step 4: Calculate
Performing the multiplication and division, we get:
50 mL / 25 = Volume to administer
2 mL = Volume to administer
Correct Answer is ["2"]
Explanation
Given:
Desired dose: Naloxone 0.4 mg IV bolus
Available concentration: Naloxone injection 0.2 mg/mL
To find:
Volume to administer per dose (in mL)
Step 1: Set up the proportion
We can use the following proportion to solve the problem:
(Desired dose) / (Available concentration) = Volume to administer
Step 2: Substitute the values
Plugging in the given values, we get:
(0.4 mg) / (0.2 mg/mL) = Volume to administer
Step 3: Simplify
To simplify, we can invert the denominator and multiply:
(0.4 mg) x (1 mL / 0.2 mg) = Volume to administer
The "mg" units cancel out, leaving us with:
(0.4 x 1 mL) / 0.2 = Volume to administer
Step 4: Calculate
Performing the multiplication and division, we get:
0.4 mL / 0.2 = Volume to administer
2 mL = Volume to administer
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