A physician orders Toradol (ketorolac) 30 mg IV push every 6 hours x 4 doses. A nurse has Toradol available as a 30 mg/mL injection.
How many millilitres per dose should the nurse administer to the patient?
A.
0.6 mL
B.
0.4 mL
C.
1 mL
D.
3 mL
The correct answer and Explanation is :
To determine how many milliliters of Toradol (ketorolac) the nurse should administer per dose, follow these steps:
- Understand the Ordered Dose and Available Concentration:
- The physician orders 30 mg of Toradol every 6 hours.
- The available Toradol concentration is 30 mg/mL.
- Calculate the Volume Required for Each Dose:
- You need to administer 30 mg of Toradol.
- The concentration is 30 mg/mL. To find out how many milliliters (mL) of the solution are needed for a 30 mg dose, use the formula: [
\text{Volume (mL)} = \frac{\text{Desired Dose (mg)}}{\text{Concentration (mg/mL)}}
] Plugging in the values: [
\text{Volume (mL)} = \frac{30 \text{ mg}}{30 \text{ mg/mL}} = 1 \text{ mL}
]
- Verify the Calculation:
- Given that the concentration is 30 mg/mL, and the required dose is 30 mg, you would need to administer 1 mL of the solution to deliver the desired dose of 30 mg.
Therefore, the correct answer is:
C. 1 mL
Explanation:
When administering medications, it’s crucial to match the physician’s order with the concentration of the medication on hand. Here, the ordered dose of Toradol is 30 mg, and the available solution has a concentration of 30 mg/mL. By dividing the dose needed (30 mg) by the concentration (30 mg/mL), you determine that you need 1 mL of the solution to provide the correct dose. This method ensures precise dosing, critical for effective and safe medication administration.