Hydroxocobalamine differs from cyanocobalamine in that

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Question 1 of 5

Hydroxocobalamine differs from cyanocobalamine in that

A. It is more protein bound and better retained B. It is beneficial in tobacco amblyopia C. It benefits haematological but not neurological manifestations of Vit $B_{12}$ deficiency D. Both (a) and (b)

Correct Answer: D

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Question 2 of 5

Vitamin B12 is a required co-factor for the following reaction

A. Conversion of methylmalonyl-CoA to succinylCoA B. Conversion of $5-\mathrm{CH}_3-\mathrm{H}_4$-folate to $\mathrm{H}_4$-folate C. Conversion of homocysteine to methionine D. All of the above

Correct Answer: D

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Question 3 of 5

Vitamin K is indicated for the treatment of bleeding occurring in patients

A. Being treated with heparin B. Being treated with streptokinase C. Of obstructive jaundice D. Of peptic ulcer

Correct Answer: C

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Question 4 of 5

Menadione (Vitamin $\mathbf{K}_3$)

A. Can cause hemolysis in patients with G-6-PD deficiency B. Is given in large doses in patients with severe liver disease C. Is useful to prevent haemorrhagic disease of the newborn D. Is the preparation of choice to antagonize the effect of warfarin overdose

Correct Answer: A

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Question 5 of 5

Vitamin K promotes the hepatic biosynthesis of following blood clotting factor

A. Factor I B. Factor II C. Factor VIII D. All of the above

Correct Answer: B

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

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