This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pharmacology
In reconstruction of limb. What is done first? NOT RELATED-OHO 
Select and explain. 
A. Bone fixation, B. Aery anastomosis, C. Nerve repair, D. Vein repair
A: Bone fixation
Answer: A: Bone fixation 
Explanation: The order of repair for the various structures is based on surgeon preference and the specific patient.The preferred sequence is bone repair followed by extensors, veins, dorsal skin, aeries, nerves, and flexors because this sequence allows efficient repair of all the dorsal structures and then the volar structures. If the warm ischemia time is unusually long, the aeries can be repaired earlier.THUS THE ORDER IS BONE /VEINS/AERIES/NERVES AND THAN TENDONS REMEMBER SKIN COVERAGE IS A MUST