Mechanism of action of sodium nitroprusside in cyanide poisoning -
Produces methemoglobinemia
Increased blood flow to liver
Increased blood flow to hea
Increased blood flow to kidney
Ans. is 'a' i.e., Produces methemoglobinemia o Nitrates generate methaemoglobin which has high affinity for cyanide and forms cyanomethaemoglobin.o Cynomethaemoglobin may again dissociate to release cyanide, therefore, sodium thiosulfate is given to form sod.