The nurse is caring for a child with acute renal failure. Which clinical manifestation should the nurse recognize as a sign of hyperkalemia?
Cardiac arrhythmia
Seizure
Dyspnea
Oliguria
The Correct Answer is A
Choice A reason:
Cardiac arrhythmia is a primary clinical manifestation of hyperkalemia. Hyperkalemia, defined as an elevated level of potassium in the blood, can significantly affect the electrical activity of the heart. This can lead to various types of arrhythmias, including bradycardia, ventricular tachycardia, and even cardiac arrest1. The presence of arrhythmias is a critical indicator of hyperkalemia and requires immediate medical attention to prevent life-threatening complications.

Choice B reason:
Seizures are not typically associated with hyperkalemia2. While severe electrolyte imbalances can potentially lead to neurological symptoms, seizures are more commonly linked to conditions such as hyponatremia (low sodium levels) or hypocalcemia (low calcium levels). Therefore, seizures are not a primary sign of hyperkalemia.
Choice C reason:
Dyspnea, or difficulty breathing, can occur in various medical conditions, including heart failure and respiratory disorders. While hyperkalemia can lead to muscle weakness and fatigue, which might indirectly affect breathing, dyspnea is not a primary clinical manifestation of hyperkalemia. The main concern with hyperkalemia is its effect on cardiac function.
Choice D reason:
Oliguria, or reduced urine output, is a symptom of acute renal failure but not specifically indicative of hyperkalemia. While acute renal failure can lead to hyperkalemia due to the kidneys’ inability to excrete potassium, oliguria itself is not a direct sign of hyperkalemia. The focus should be on the cardiac effects of elevated potassium levels
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A reason:
Opioid analgesics are not given as a last resort solely because of the threat of addiction. While the risk of addiction is a concern, opioids are often necessary for managing severe pain, especially in conditions like sickle cell anemia. The American Society of Hematology guidelines emphasize the importance of effective pain management in sickle cell disease, which often includes the use of opioids. The goal is to manage pain effectively while monitoring for signs of misuse or addiction.
Choice B reason:
Opioid analgesics are often ordered and are usually needed for managing severe pain in patients with sickle cell anemia. Pain episodes in sickle cell disease can be extremely severe and debilitating, requiring potent analgesics like morphine for relief. The management of acute vaso-occlusive pain in sickle cell disease often necessitates the use of opioids to provide adequate pain control.
Choice C reason:
Opioid analgesics, when medically indicated and used under proper medical supervision, rarely cause addiction. The risk of addiction is significantly lower when opioids are used appropriately for pain management in a controlled medical setting. The Mayo Clinic highlights that while opioids have addictive properties, their medical use for pain relief, especially in acute settings, is generally safe when monitored by healthcare professionals.
Choice D reason:
Opioid analgesics are not used only if other measures, such as ice packs, are ineffective. While non-pharmacological measures can be part of pain management, opioids are often necessary for managing severe pain episodes in sickle cell disease. The use of opioids is based on the severity of the pain and the clinical judgment of the healthcare provider.
Correct Answer is C
Explanation
Choice A reason:
Performing an ultrasound to determine if there is urinary retention is not the immediate priority action. While an ultrasound can help assess urinary retention, the presence of edema, redness, and the foreskin being behind the glans penis suggests a condition known as paraphimosis. Paraphimosis is a medical emergency that requires prompt attention to prevent complications such as tissue damage. Therefore, alerting the ER physician is the priority action.
Choice B reason:
Asking the parents specifically how long the infant has not voided is important for gathering information, but it is not the immediate priority action. The clinical signs of edema, redness, and the foreskin being behind the glans penis indicate a potential emergency that requires immediate medical intervention. While obtaining a detailed history is important, the nurse should first alert the ER physician to ensure timely management.
Choice C reason:
Alerting the ER physician to the patient’s condition is the correct priority action. The presence of edema, redness, and the foreskin being behind the glans penis suggests paraphimosis, which is a urological emergency. Prompt intervention is necessary to reduce the foreskin and restore normal blood flow to prevent tissue damage3. The ER physician can provide the necessary treatment and management for this condition.
Choice D reason:
Continuing to monitor the patient in the ER setting is not appropriate without first addressing the potential emergency. The signs of edema, redness, and the foreskin being behind the glans penis indicate a condition that requires immediate medical attention. Monitoring alone is insufficient; the nurse must alert the ER physician to ensure prompt intervention.
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