Which condition is usually associated with clubbing?

Question

Quizplus · Accepted Answer

Clubbing in the nail bed is a sign associated with longstanding central cyanotic heart disease or pulmonary disease with hypoxemia.Peripheral cyanosis,a bluish discoloration of the nail bed,is seen more commonly.Peripheral cyanosis results from a reduction in the quantity of oxygen in the peripheral extremities from arterial disease or decreased cardiac output.Central cyanosis is a bluish discoloration of the tongue and sublingual area.Multiracial studies indicate that the tongue is the most sensitive site for observation of central cyanosis.

Which Condition Is Usually Associated with Clubbing