1.67 pts A 54-year-old male patient with a history of chronic kidney disease and primary

1.67 pts A 54-year-old male patient with a history of chronic kidney disease and primary hyperparathyroidism presented to the emergency department after experiencing syncope while gardening. Initial assessment showed hypotension (90/60 mmHg) and tachycardia (110 bpm). Laboratory results revealed a serum calcium level of 7.5 mg/dL. Which of the following is the most likely underlying cause of this patient’s symptoms? O Decreased calcium availability leading to impaired myocardial contractility O Decreased calcium levels leading to increased myocardial excitability Decreased calcium levels resulting in increased cardiac repolarization O Impaired coronary artery function leading to electrolyte imbalance Previous

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