Q- An old man with a long history of diabetes develops an ulcer on his left big toe which is not healed in 3 months. His blood glucose level is within normal limits.
Which of the following is the most accurate test to explain this condition?
A- Anti-insulin antibodies detection
B- Hemoglobin A1C level
C- Plasma insulin
D- Urine ketones
Q- It is approved that increased serum level of homocysteine is associated with increased risk of atherosclerosis. Which one of the following vitamins is an important cofactor in the metabolism of homocysteine?
A- Ascorbic acid
Q- A patient with a long history of atherosclerosis develops dry gangrene in his foot and toes. Which of the following types of necrosis predominates in this condition?
A- Coagulative necrosis
B- Fat necrosis
C- Fibrinoid necrosis
D- Liquefactive necrosis