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NCLEX RN Practice Exam Questions

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Question 1 of 5

A client is prescribed heparin 2,000 units SC q8 hours. The pharmacy sends heparin 5,000 units/mL. How many mL should the nurse administer every 24 hours?

Correct Answer: C

Rationale: Dose per injection: 2,000 units ÷ 5,000 units/mL = 0.4 mL. Q8 hours = 3 doses/day. 0.4 mL × 3 = 1.2 mL/day.

Question 2 of 5

The nurse is caring for a client admitted with suspected myasthenia gravis. Which finding is usually associated with a diagnosis of myasthenia gravis?

Correct Answer: D

Rationale: Myasthenia gravis is characterized by muscle weakness that worsens with activity and improves with rest, typically more pronounced at the end of the day.

Question 3 of 5

The nurse is working with another nurse and a patient care assistant. Which of the following clients should be assigned to the registered nurse?

Correct Answer: D

Rationale: A post-thoracotomy patient requires RN monitoring for respiratory complications.

Question 4 of 5

Which vitamin should be administered with INH (isoniazid) in order to prevent possible nervous system side effects?

Correct Answer: C

Rationale: Pyridoxine (vitamin B6) is given with isoniazid to prevent peripheral neuropathy, a potential side effect of the medication.

Question 5 of 5

The nurse is preparing a client for cervical uterine radiation implant insertion. Which will be included in the teaching plan?

Correct Answer: B

Rationale: A Foley catheter is inserted during cervical radiation implants to keep the bladder empty, reducing radiation exposure to nearby organs. The other options are incorrect or irrelevant.

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