AAB MT CHEMISTRY TEST QUESTIONS AND ANSWERS GRADED A+ 100% VERIFIED.

AAB MT CHEMISTRY TEST QUESTIONS AND ANSWERS GRADED A+ 100% VERIFIED. What hormone produced by the islets of Langerhans decreases glucose? Choose one ANSWER. a. glucagon b. insulin c. epinephrine d. cortisol - ANSWER -b. insulin A 40-year-old male has a random glucose of 270 mg/dL. This laboratory finding is consistent with which of the following conditions? Choose one ANSWER. a. von Gierke disease b. diabetes insipidus c. insulinoma d. diabetes mellitus - ANSWER -d. diabetes mellitus Which of the following methods is considered the reference method for measuring glucose due to its increased accuracy and sensitivity? Choose one ANSWER. a. hexokinase b. o-toluidine c. glucose dehydrogenase d. glucose oxidase - ANSWER -a. hexokinase What analyte is used to measure the long term control of a diabetis glucose levels? Choose one ANSWER. a. fasting blood glucose b. glucose tolerance test c. fructosamine d. hemoglobin A1C - ANSWER -d. hemoglobin A1C Lipemia is associated with an increased amount of which of the following? Choose one ANSWER. a. LDL cholesterol b. triglycerides c. HDL cholesterol d. bilirubin - ANSWER -b. triglycerides The enzymatic hydrolysis of triglyceride may be accomplished by what enzyme? Choose one ANSWER. a. amylase b. cholesterol esterase c. cholesterol oxidase d. lipase - ANSWER -d. lipase Most triglyceride procedures involve the measurement of what end product? Choose one ANSWER. a. lipoprotein b. glycerol c. fatty acids d. phospholipids - ANSWER -b. glycerol Which of the following formulas is used to calculate LDL cholesterol? Choose one ANSWER. a. LDL cholesterol = cholesterol + (triglycerides/5 + HDL cholesterol) b. LDL cholesterol = cholesterol - (triglycerides/5 - HDL cholesterol) c. LDL cholesterol = cholesterol - HDL - (triglycerides/5) d. LDL cholesterol = cholesterol + (triglycerides/5 - HDL cholesterol) - ANSWER -c. LDL cholesterol = Total cholesterol - HDL - (triglycerides/5) An elevated concentration of what analyte decreases risk of coronary heart disease? Choose one ANSWER. a. HDL cholesterol b. LDL cholesterol c. triglycerides d. total cholesterol - ANSWER -a. HDL cholesterol Which of the following enzymes is most greatly affected by hemolysis? Choose one ANSWER. a. alanine aminotransferase b. lactate dehydrogenase c. gamma-glutamyltransferase d. amylase - ANSWER -b. lactate dehydrogenase What serum enzyme begins to rise 2 to 4 hours, has peak activity occurring 12 to 36 hours, and returns to normal 2 to 4 days after an acute myocardial infarction? Choose one ANSWER. a. aspartate transaminase b. lactate dehydrogenase c. aldolase d. creatine kinase - ANSWER -d. creatine kinase what enzyme is liver specific? Choose one ANSWER. a. alkaline phosphatase b. lactate dehydrogenase c. aspartate transaminase d. alanine transaminase - ANSWER -d. alanine transaminase An elevated alkaline phosphatase level in the absence of other elevated liver enzymes is suggestive of which of the following disorders? Choose one ANSWER. a. ectopic pregnancy b. bone disorder c. prostate cancer d. viral hepatitis - ANSWER -b. bone disorder Lipase catalyzes the hydrolysis of what substrate? Choose one ANSWER. a. triglycerides b. starch