This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
Which of the following is NOT seen in Paroxysmal Nocturnal Hemoglobinuria : 
Select and explain. 
A. Thrombosis, B. Hemosiderinuria, C. Decreased LDH, D. Thrombocytopenia
C: Decreased LDH
Answer: C: Decreased LDH 
Explanation: Answer is C (Decreased LDH) Because of increased activation of complement and complement mediated destruction of RBC there occurs intravascular hemolysis and an elevated LDH is seen. Paroxysmal nocturnal haemoglobinuria may have thrombosis and thrombocytopenia both, as is depicted in the previous explanations.