This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General pathology, Subject name: Pathology
Acute phase reactants are all except- 
Select and explain. 
A. C-reactive protein, B. Haptaglobulin, C. Endothelin, D. Fibrinogen
C: Endothelin
Answer: C: Endothelin 
Explanation: Endothelin is a vasoconstrictive mediator released in response to endothelial dysfunction. Basic Pathology, Robbins. Page no.: 484