which electrolyte imbalance is most likely to cause cardiac arrhythmias
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HESI LPN

PN Exit Exam 2023 Quizlet

1. Which electrolyte imbalance is most likely to cause cardiac arrhythmias?

Correct answer: A

Rationale: Hyperkalemia is the correct answer as it can lead to dangerous cardiac arrhythmias due to its effects on the electrical conduction of the heart. High levels of potassium can disrupt the normal electrical activity of the heart, potentially leading to life-threatening arrhythmias. Hypocalcemia (choice B) is not the most likely cause of cardiac arrhythmias compared to hyperkalemia. Hypernatremia (choice C), referring to high sodium levels, is not directly associated with causing cardiac arrhythmias. While hypokalemia (choice D), low potassium levels, can also lead to cardiac arrhythmias, hyperkalemia is the more likely culprit in causing severe disturbances in heart rhythm.

2. The home health PN suspects elder abuse after observing fresh lacerations on the arms and legs of an older adult male client who lives with his daughter. Which action is most important for the PN to take?

Correct answer: B

Rationale: The most important action for the PN to take in this situation is to report the findings to the supervisor for referral to adult protective services. Suspected elder abuse must be reported promptly to ensure the safety and protection of the client. Documenting the lacerations in the client's record is important but not as critical as reporting the suspected abuse. Asking the daughter who is the potential abuser may not yield accurate information and could compromise the safety of the client. Applying dressings to the wounds is a lower priority compared to addressing the suspected elder abuse.

3. Which of the following is MOST LIKELY to increase the risk of a medication error?

Correct answer: B

Rationale: Errors in the calculation of medication dosages are a significant risk factor for medication errors. When dosage calculations are incorrect, it can lead to administering the wrong amount of medication, posing serious harm to the patient. Avoiding abbreviations for medications, barcoding medication orders, and utilizing unit dose dispensers are all strategies aimed at reducing medication errors by enhancing accuracy and safety. Therefore, choices A, C, and D are incorrect as they are practices that help decrease, rather than increase, the risk of medication errors.

4. A client with a recent total knee replacement is scheduled for physical therapy. The client refuses to participate, stating that the pain is too intense. What should the nurse do first?

Correct answer: A

Rationale: Administering pain medication before physical therapy helps manage the pain, making it easier for the client to participate in the necessary exercises to improve recovery and prevent complications such as joint stiffness. Choice B is not the first step as addressing the pain should take precedence. Choice C is important but should come after managing the pain to facilitate participation. Choice D involves another healthcare provider and is not the immediate action needed in this situation.

5. The UAP reports to the PN that an assigned client experiences SOB when the bed is lowered for bathing. Which action should the PN implement?

Correct answer: B

Rationale: Advising the UAP to allow the client to rest before completing the bath is the most appropriate action to take. This helps manage the shortness of breath (SOB) experienced by the client and prevents further stress. By giving the client time to rest, the PN ensures the client's comfort and safety during care activities. The other options are not the most immediate or appropriate actions in this scenario: obtaining further data about activity intolerance (choice A) may delay addressing the current issue, obtaining vital signs and pulse oximetry (choice C) is important but not as immediate as allowing the client to rest, and notifying the healthcare provider (choice D) is premature before trying a simple intervention like allowing the client to rest.

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