which statement best describes electrolytes in intracellular and extracellular fluid
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Nursing Elites

NCLEX-PN

NCLEX PN Exam Cram

1. Which statement best describes electrolytes in intracellular and extracellular fluid?

Correct answer: A

Rationale: Electrolytes are distributed unequally between intracellular and extracellular fluids. Sodium concentration is higher in extracellular fluid, while potassium concentration is higher in intracellular fluid. Therefore, the correct answer is 'There is a greater concentration of sodium in extracellular fluid and potassium in intracellular fluid.' Choices B, C, and D are incorrect because they do not accurately describe the typical distribution of sodium and potassium between intracellular and extracellular fluid.

2. One day postoperative, the client complains of dyspnea, and his respiratory rate (RR) is 35, slightly labored, and there are no breath sounds in the lower-right base. The nurse should suspect:

Correct answer: B

Rationale: The correct answer is atelectasis. The absence of breath sounds in the lower-right base is a key finding in atelectasis, which occurs when a portion of the lung collapses. The other symptoms such as dyspnea and increased respiratory rate could be present in various pulmonary conditions. Cor pulmonale is typically associated with chronic lung disease, pulmonary embolism presents with sudden onset dyspnea and chest pain, and cardiac tamponade manifests with Beck's triad of hypotension, distended neck veins, and muffled heart sounds.

3. The client is undergoing an induction for fetal demise at 34 weeks. Immediately after delivery, the mother asks to see the infant. What is the nurse's best response?

Correct answer: A

Rationale: The nurse should bring the swaddled fetus to the mother as the best response. Allowing the mother to see the infant immediately after delivery is crucial for her grieving process. It provides her with the opportunity to bond, say goodbye, and start the grieving process. Choice B is incorrect because delaying the mother's request to see the baby can hinder her grieving process and prolong her suffering. Choice C is inappropriate as it questions the mother's decision at a sensitive time, potentially causing distress. Choice D is also not the best response as it suggests waiting, which may not be in the mother's best interest at that moment, as she needs immediate support and closure.

4. A patient has been admitted to the hospital with an L4-5 HNP diagnosis. After 24 hours, the patient is able to ambulate with assistance and has reduced muscle spasms. Which of the following medications was the most beneficial in changing the patient's mobility status?

Correct answer: D

Rationale: The correct answer is Flexeril. Flexeril is a muscle relaxant commonly used to treat acute muscle pain and spasms. In this scenario, the patient experiencing reduced muscle spasms and improved mobility after taking Flexeril indicates its effectiveness. Choice A, Mivacron, is a neuromuscular blocking agent that is not typically used for muscle spasms or pain relief. Choice B, Atropine, is a medication used to treat certain types of nerve agent and pesticide poisonings, not muscle spasms. Choice C, Bethanechol, is a medication that stimulates bladder contractions and is not indicated for muscle spasms or mobility improvement.

5. A nurse reviewed the arterial blood gas reading of a 25-year-old male. The nurse should be able to conclude the patient is experiencing which of the following conditions?

Correct answer: D

Rationale: The correct answer is respiratory alkalosis. In respiratory alkalosis, there is an elevated pH and low carbon dioxide levels (PaCO2 < 35 mmHg). In the given arterial blood gas reading, the patient's pH is 7.41 (within normal range), PaCO2 is 29 mmHg (below normal range), indicating respiratory alkalosis. The bicarbonate level is normal (25 mEq/l), ruling out metabolic acidosis or alkalosis. The low PaO2 (54 mmHg) may indicate hypoxemia, but it is not directly related to the acid-base disorder being assessed. Metabolic acidosis (choice A) is characterized by low pH and low bicarbonate levels, which are not present in this case. Respiratory acidosis (choice B) is indicated by low pH and high PaCO2 levels, which also do not match the provided data. Metabolic alkalosis (choice C) is defined by high pH and high bicarbonate levels, which are not seen in this scenario.

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