The EDAIC Multiple Choice Questions with answers and simplified explanations. FREE UPLOADS BY WWW.TARGETEDAIC.COM (32)

The section, ‘EDAIC Multiple Choice Questions’ with answers and simplified explanations, covers a different topic each day with the intent that candidates can prepare one small topic each day, making steady progress in their exam preparation.

Question: The fate of cyanide ions produced from sodium nitroprusside includes

1. Rhodanese mediated inactivation within the RBCs
2. Thiocyanate formation
3. Formation of methaemoglobin
4. Inactivation by cytochrome oxidase
5. Combination with vitamin B12

Answers:

1. false
2. true
3. false
4. false
5. true

Explanation:

The fate of cyanide ions can be the formation of

1. Cyanmethemoglobin (binding to methaemoglobin).
2. Thiocyanate (thiosulfate + cyanide thiocyanate) in presence of rhodanese in the liver and kidney.
3. Cyanocobalamin (binding to hydroxy-cobalamin, vitamin B₁₂).
4. Cyanide-tissue cytochrome oxidase complex, which interferes with normal oxygen utilization.

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The ‘EDAIC Multiple Choice Questions with answers and simplified explanations’ section covers a different topic each day with the intent that candidates can prepare one small topic each day, making steady progress in their exam preparation.