Elsevier: Clinical Chemistry Questions and Answers 100% Pass

Elsevier: Clinical Chemistry Questions and Answers 100% Pass 1. Which of the following is considered a lipid? a. Chylomicrons b. LDL c. Cholesterol d. HDL c 2. In the laboratory procedure for the quantification of HDL, the purpose of the dextran sulfate is to: a. Precipitate all Apo A1 containing lipoproteins b. Covert cholesterol esters to cholesterol for detection c. Precipitate all Apo B and Apo A containing lipoproteins d. Precipitate all Apo B containing proteins d Which of the following lipoproteins is the smallest of all the lipoproteins and is composed of 50% protein? a. HDL b. Chylomicrons c. LDL d. Triglycerides A Which of the following would be most adversely affected by a nonfasting sample? a. HDL b. LDL c. Cholesterol d. Triglycerides d Which of the following apoproteins is responsible for receptor binding for IDL and the chylomicron remnant produced in fat transport? a. Apo A1 b. Apo C c. Apo E d. Apo B c Which of the following enzymes is found bound to HDL and LDL in blood plasma and acts to convert free cholesterol into cholesteryl esters? a. Cholesterol esterase b. Cholesterol oxidase c. Lecithin-cholesterol acyltransferase d. Lipase c Which of the following blood samples would serve best to assay lipoproteins because this anticoagulant acts to preserve lipoproteins? a. EDTA plasma sample b. Heparin plasma sample c. Citrate plasma sample d. Fluoride plasma sample a Exogenous triglycerides are transported in the plasma in which of the following forms? a. VLDL b. Chylomicrons c. LDL d. Cholesteryl esters b A patient presents to his physician for a lipid profile. The following results are received: HDL¼50 mg/dL Total cholesterol¼300 mg/dL Triglycerides¼200 mg/dL The calculated LDL cholesterol is: a. 200 b. 210 c. 290 d. 350 b According to the National Cholesterol Education Program, which lipid or lipoprotein class is more important for therapeutic decision making (diet and medication decisions)? a. Chylomicrons b. LDL c. HDL d. Cholesterol b