Chlorpromazine (Thorazine) 175 mg IM is ordered. Available: 25 mg/mL. How many mLs will you administer?
0.5 mL
7 ml
2 ml
17 ml
The Correct Answer is B
To calculate the dosage, we need to use the formula:
Dosage (mL) = Ordered dose (mg) / Available dose (mg/mL)
Plugging in the given values, we get:
Dosage (mL) = 175 mg / 25 mg/mL
Simplifying, we get:
Dosage (mL) = 7 mL
Therefore, the dosage is 7 mL.
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Related Questions
Correct Answer is A
Explanation
To calculate the dosage using the ratio and proportion method, we need to set up a proportion with the ordered dose and the available dose as follows:
Ordered dose (units) / Dosage (mL) = Available dose (units) / Available volume (mL)
Plugging in the given values, we get:
8,500 units / Dosage (mL) = 50,000 units / 5 mL
Cross-multiplying, we get:
50,000 units x Dosage (mL) = 8,500 units x 5 mL
Solving for Dosage (mL), we get:
Dosage (mL) = (8,500 units x 5 mL) / 50,000 units
Simplifying, we get:
Dosage (mL) = 42,500 mL / 50,000
Therefore, the dosage is 0.85 mL.
Correct Answer is B
Explanation
To solve this problem, we need to use the formula:
Desired dose / Available dose = Number of tablets
Plugging in the given values, we get:
200 mg / 100 mg = Number of tablets
2 = Number of tablets
Therefore, the correct dosage is 2 tablets.
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