A patient on prolonged broad-spectrum antibiotics develops prolonged PT. Which biochemical defect is responsible?
1). Reduced fibrinogen synthesis
2). Failure of γ-carboxylation of glutamate residues
3). Defective collagen synthesis
4). Reduced platelet production

The primary function of ABCA1 protein is:
1). LDL uptake
2). Cholesterol efflux to HDL
3). Chylomicron synthesis
4). Triglyceride hydrolysis

Which apolipoprotein mediates reverse cholesterol transport?
1). Apo B100
2). Apo A-I
3). Apo C-II
4). Apo E

Which lipoprotein is richest in cholesterol esters?
1). Chylomicron
2). HDL
3). LDL
4). VLDL

Which vitamin deficiency produces elevated pyruvate and lactate?
1). Vitamin C
2). Vitamin B1
3). Vitamin B12
4). Vitamin A