Which statement best describes thrombocytopenia?

Which statement best describes thrombocytopenia?

• A. It always presents with fever
• B. It never causes mucosal bleeding
• C. It is defined by a low platelet count and can cause petechiae
• D. It is unrelated to platelet count

Answer: (C)

Thrombocytopenia means there are fewer platelets circulating than normal, which impairs the formation of the platelet plug in primary hemostasis. Because platelets are key for sealing small vessel injuries, a low count often leads to visible petechiae—tiny red or brownish spots on the skin that reflect minor capillary bleeding. Fever is not defining for this condition, and while mucosal bleeding can occur when platelets are low, that reality contradicts the idea that mucosal bleeding never happens. Since the defining feature is the low platelet count and the resulting tendency to bleed into tissues (like causing petechiae), that statement best captures what thrombocytopenia is.

Thrombocytopenia means there are fewer platelets circulating than normal, which impairs the formation of the platelet plug in primary hemostasis. Because platelets are key for sealing small vessel injuries, a low count often leads to visible petechiae—tiny red or brownish spots on the skin that reflect minor capillary bleeding. Fever is not defining for this condition, and while mucosal bleeding can occur when platelets are low, that reality contradicts the idea that mucosal bleeding never happens. Since the defining feature is the low platelet count and the resulting tendency to bleed into tissues (like causing petechiae), that statement best captures what thrombocytopenia is.