NCLEX-PN
NCLEX PN Exam Cram
1. A patient had a pneumonectomy to the right lung performed 48 hours ago. Which of the following conditions most likely exists?
- A. Decreased breath sound volume
- B. Elevated tidal volume
- C. Elevated respiratory capacity
- D. Wheezing
Correct answer: A
Rationale: After a pneumonectomy, where a lung is surgically removed, there will be a decrease in breath sound volume on the affected side due to reduced airflow. This reduction in breath sound volume is expected as there is less lung tissue to produce sound. Choices B, C, and D are incorrect. Elevated tidal volume and respiratory capacity are not expected after a pneumonectomy, and wheezing is more commonly associated with conditions like asthma or bronchitis, not a recent pneumonectomy.
2. For which adverse effect of the block does the postpartum nurse monitor the woman after receiving a subarachnoid (spinal) block for a cesarean delivery?
- A. Headache
- B. Pruritus
- C. Vomiting
- D. Hypertension
Correct answer: A
Rationale: The correct answer is 'Headache.' Postdural headache is a common adverse effect associated with a subarachnoid block due to cerebrospinal fluid leakage at the site of dural puncture. This headache worsens when the woman is upright and may improve when she lies flat. To manage this headache, bed rest and adequate hydration are recommended. Pruritus, vomiting, and hypertension are not typically associated with subarachnoid blocks. Pruritus, nausea, and vomiting are more commonly linked to the use of intrathecal opioids.
3. The nurse is preparing for a dressing change on a full thickness burn to the flank area. The orders include irrigating the wound with each dressing change. To irrigate the wound, what will the nurse use?
- A. Sterile saline
- B. Distilled water
- C. Betadine scrub
- D. Tap water
Correct answer: A
Rationale: When irrigating a wound, especially in the case of a full-thickness burn, it is crucial to use a solution that is gentle and non-irritating to the tissues. Sterile saline is the preferred choice for wound irrigation as it is isotonic and does not cause additional damage to the already compromised tissue. Distilled water lacks the electrolytes present in saline, Betadine scrub is not used for irrigation due to its potential to be cytotoxic, and tap water may introduce contaminants and microorganisms to the wound.
4. Which of the following medications is not classified as a neuromuscular blocker?
- A. Anectine
- B. Pavulon
- C. Pitressin
- D. Mivacron
Correct answer: C
Rationale: The correct answer is Pitressin. Pitressin is a hormone replacement medication and is not classified as a neuromuscular blocker. Choices A, B, and D (Anectine, Pavulon, Mivacron) are neuromuscular blockers used during anesthesia to induce muscle relaxation for various procedures. Anectine is also known as succinylcholine, Pavulon is rocuronium, and Mivacron is mivacurium. These medications act on the neuromuscular junction to block the transmission of nerve impulses, leading to muscle relaxation.
5. Because of the possible nervous system side-effects that occur with isoniazid (Nydrazid) therapy, which supplementary nutritional agent would the nurse teach the client to take as a prophylaxis?
- A. Alpha tocopherol (vitamin E)
- B. Ascorbic acid (vitamin C)
- C. Calcitriol (vitamin D)
- D. Pyridoxine (vitamin B6)
Correct answer: D
Rationale: Pyridoxine is the correct choice in this scenario because it is used as a prophylaxis to prevent neuritis, a possible nervous system side-effect of isoniazid therapy. Neuritis is a condition that involves inflammation of the nerves and can be a side effect of isoniazid. Pyridoxine, also known as vitamin B6, helps prevent this side effect. Vitamin E (Alpha tocopherol), vitamin C (Ascorbic acid), and vitamin D (Calcitriol) do not specifically address the nervous system side-effects associated with isoniazid therapy, making them incorrect choices.
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