A nurse is preparing to administer lidocaine 2 mg/min by continuous IV infusion to a client. The amount available is lidocaine 400 mg in 100 mL of dextrose 5% in water. The nurse should set the IV pump to deliver how many mL/hr? (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 ["30"]
Calculation:
- Determine the concentration of the available lidocaine solution in milligrams per milliliter (mg/mL).
Available concentration = Total medication (mg) / Total volume (mL)
= 400 mg / 100 mL
= 4 mg/mL.
- Convert the desired dose from milligrams per minute (mg/min) to milligrams per hour (mg/hr).
1 hr = 60 min
Desired dose in mg/hr = 2 mg/min × 60 min/hr
= 120 mg/hr.
- Calculate the IV pump rate in milliliters per hour (mL/hr).
IV pump rate (mL/hr) = Desired dose (mg/hr) / Available concentration (mg/mL)
= 120 mg/hr / 4 mg/mL
= 30 mL/hr.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Apply mitten restraints to prevent the client from disconnecting their tube feeding: Mitten restraints are often used to prevent clients from pulling out tubes or disrupting medical devices. The nurse can apply these restraints as long as they follow the prescribed protocol.
B. Apply soft heel protectors bilaterally while client is in bed: Soft heel protectors are commonly used to prevent pressure ulcers or skin breakdown in immobile clients. This is a standard, non-controversial intervention and does not require verification.
C. Applying a vest restraint daily at bedtime to prevent nighttime wandering is considered a physical restraint used for convenience or punishment, which is a violation of client rights and safety. Restraints should only be used as a last resort when all less restrictive alternatives have failed and for the shortest duration possible.
D. Apply an abduction pillow between the client's knees while they are in bed to prevent hip dislocation: The use of an abduction pillow is common after hip replacement surgery or for patients at risk of hip dislocation. This is an appropriate intervention.
Correct Answer is ["B","C","E"]
Explanation
A. "You will take medication for this condition for several months!": Hypothyroidism typically requires lifelong thyroid hormone replacement therapy, not just for several months. The client should be informed that they will need to take the medication for the long term.
B. "This condition can cause you to gain weight.": Weight gain is a common symptom of hypothyroidism due to a slowed metabolism. The nurse should include this in the teaching to help the client understand how the condition may affect their weight.
C. "We will perform laboratory tests to monitor the effect of your medication.": Regular monitoring of thyroid function tests (such as TSH and T4 levels) is essential to ensure that the medication is effective and that the dosage is appropriate.
D. "You might notice that you perspire more with this condition.": Hypothyroidism typically causes cold intolerance and reduced perspiration, not increased perspiration. This statement is incorrect and should not be included in the teaching.
E. "You will need to eat a high-fiber diet to prevent complications of this condition.": Hypothyroidism can lead to constipation due to a slowed metabolism. A high-fiber diet is recommended to help prevent constipation and promote regular bowel movements.
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