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학습 자료 둘러보기 →The most specific non-cardiac indicators of digoxin toxicity are visual disturbances (e.g., yellow halos, blurred vision) and gastrointestinal symptoms (e.g., nausea, vomiting, anorexia). These often precede cardiac arrhythmias.
Cardiac signs like bradycardia (heart rate < 60 bpm) are common but less specific. A rate of 58 bpm is a borderline finding that requires holding the dose and further assessment, but it is not the definitive sign of toxicity.
Toxicity can occur even with a "therapeutic" serum digoxin level, especially in patients with renal impairment or hypokalemia. Always correlate lab values with clinical assessment findings.
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