Which clinical manifestation would be seen in a child with chronic renal failure?

 

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

Choice A reason:

Assessing fluid intake is important in managing dehydration, but it is not the most critical assessment before initiating an IV infusion containing potassium chloride (KCL). Fluid intake provides information about the child’s hydration status but does not directly indicate kidney function. Since potassium can cause hyperkalemia if not properly excreted, monitoring urine output is more crucial.

Choice B reason:

Urine output is the most important assessment before initiating an IV infusion containing potassium chloride (KCL). This is because adequate urine output indicates that the kidneys are functioning properly and can excrete excess potassium. Administering potassium chloride without ensuring proper kidney function can lead to hyperkalemia, a potentially life-threatening condition. Therefore, checking urine output is essential to prevent complications.

Choice C reason:

Capillary refill is a useful assessment for evaluating peripheral perfusion and hydration status. However, it does not provide direct information about kidney function or the body’s ability to excrete potassium. While capillary refill can be part of the overall assessment, it is not the most critical factor before administering an IV infusion with potassium chloride.

Choice D reason:

The number of stools is relevant in assessing dehydration, especially if the child has been experiencing diarrhea. However, like fluid intake, it does not directly indicate kidney function. Monitoring urine output is more important before administering potassium chloride to ensure the kidneys can handle the additional potassium load.