A nurse preparing to administer heparin 10,000 units subcutaneous every 8 hr. Available i heparin injection 20,000 units/mL. How many mL should the nurse administer per dose? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["0.5"]
Determine the desired dosage:
The nurse needs to administer 10,000 units of heparin.
Determine the volume per dose:
The heparin injection contains 20,000 units per 1 mL.
The nurse needs to administer 10,000 units per dose.
To find the volume per dose:
20,000 units / 1 mL = 10,000 units / x mL
Cross-multiplying gives us:
20,000x = 10,000
Dividing both sides by 20,000, we get:
x = 0.5 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["100"]
Explanation
Determine the desired dosage:
The nurse needs to administer 500 mg of vancomycin.
Determine the volume per dose:
The concentration of the vancomycin solution is 5 mg/mL.
The nurse needs to administer 500 mg per dose.
To find the volume per dose, we can set up a proportion:
5 mg / 1 mL = 500 mg / x mL
Cross-multiplying gives us:
5x = 500
Dividing both sides by 5, we get:
x = 100 mL
Correct Answer is ["2"]
Explanation
1. Identify the desired dose:
- The physician has ordered lidocaine 200 mg per dose.
2. Identify the concentration of the available medication:
- The available lidocaine injection is 300 mg in 3 mL. This means the concentration is 300 mg / 3 mL.
3. Calculate the volume needed to deliver the desired dose using the formula:
- Desired Dose (mg) / Available Concentration (mg/mL) = Volume to Administer (mL)
4. Calculate the available concentration in mg/mL:
- Available Concentration = 300 mg / 3 mL = 100 mg/mL
5. Plug the values into the formula:
- Volume to Administer = 200 mg / 100 mg/mL
6. Solve for the volume to administer:
- Volume to Administer = 2 mL
7. Round the answer to the nearest whole number:
- The calculated volume is already a whole number (2).
8. Apply leading zero if it applies:
- A leading zero is not needed as the answer is a whole number greater than or equal to 1.
9. Ensure no trailing zero is used:
- The answer is 2, with no trailing zero.
Answer: The nurse should administer 2 mL per dose.
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