Study for the PANCE Cardiology Test. Enhance your knowledge with comprehensive flashcards and multiple-choice questions. Each question comes with hints and detailed explanations. Prepare thoroughly for your exam!

Multiple Choice

Pheochromocytoma commonly presents with which combination of symptoms?

Pheochromocytoma causes an excess of catecholamines, leading to bursts of sympathetic activity. That surge drives sweating (diaphoresis), an elevated heart rate (tachycardia), and high blood pressure (hypertension)—a classic combination seen during catecholamine excess. The sweating comes from adrenergic stimulation of sweat glands, the tachycardia from beta-adrenergic effects on the heart, and the hypertension from vasoconstriction and increased cardiac output during these episodes. This pattern best fits the tumor’s effect and clinical presentation. Weight gain with edema points to fluid retention states; hyperpigmented skin with truncal obesity suggests Cushing syndrome; hypotension with bradycardia contradicts the typical sympathetic overdrive of pheochromocytoma.

Pheochromocytoma causes an excess of catecholamines, leading to bursts of sympathetic activity. That surge drives sweating (diaphoresis), an elevated heart rate (tachycardia), and high blood pressure (hypertension)—a classic combination seen during catecholamine excess. The sweating comes from adrenergic stimulation of sweat glands, the tachycardia from beta-adrenergic effects on the heart, and the hypertension from vasoconstriction and increased cardiac output during these episodes. This pattern best fits the tumor’s effect and clinical presentation.

Weight gain with edema points to fluid retention states; hyperpigmented skin with truncal obesity suggests Cushing syndrome; hypotension with bradycardia contradicts the typical sympathetic overdrive of pheochromocytoma.