MLT Chemistry BOC Practice Questions and Answers | 100% Pass

MLT Chemistry BOC Practice Questions and Answers | 100% Pass Following overnight fasting, hypoglycemia in adults is defined as a glucose of? - Answer️️ -less than or equal to 45mg/dL The following results are from a 21-year-old patient with a back injury who appears otherwise healthy: Whole blood glucose - 77mg/dL Serum glucose - 88mg/dL CSF glucose - 56mg/dL The best interpretation of these results is that? - Answer️️ -all values are consistent with a normal healthy individual The preparation of a patient for standard glucose tolerance testing should include? - Answer️️ -a high carbohydrate diet for 3 days If a fasting glucose was 90mg/dL, which of the following 2-hour postprandial glucose results would most closely represent normal glucose metabolism? - Answer️️ - 100mg/dL A healthy person with a blood glucose of 80mg/dL would have a simultaneously determined CSF glucose value of? - Answer️️ -50mg/dL ©SOPHIABENNETT EXAM SOLUTIONS Saturday, September 7, 2024 6:58 PM Page | 2 A 25 year old man became nauseated and vomited 90 minutes after receiving a standard 75g carbohydrate dose for an oral glucose tolerance test. The best course of action is to? - Answer️️ -draw blood for glucose and discontinue test CSF for glucose assay should be? - Answer️️ -analyzed immediately Which of the following 2 hour postprandial glucose values demonstrates unequivocal hyperglycemia diagnostic for diabetes mellitus? - Answer️️ -200mg/dL Serum levels that define hypoglycemia in pre-term or low birth weight infants are? - Answer️️ -lower than adults A 45-year old woman has a fasting serum glucose concentration of 95mg/dL and a 2- hour postprandial glucose concentration of 105mg/dL. The statement which best describes this patients fasting serum glucose concentration is? - Answer️️ -normal; reflecting glycogen breakdown by liver Pregnant women with symptoms of thirst, frequent urination or unexplained weight loss should have which of the following tests performed? - Answer️️ -glucose tolerance test In the fasting state, the arterial and capillary blood glucose concentration varies from the venous glucose concentration by approximately how many mg/dL? - Answer️️ - 5mg/dL or higher The conversion of glucose or other hexoses into lactate or pyruvate is called? - Answer️️ -glycolysis Which of the following values obtained during a glucose tolerance test are diagnostic of diabetes mellitus? - Answer️️ -fasting plasma glucose - 126mg/dL ©SOPHIABENNETT EXAM SOLUTIONS Saturday, September 7, 2024 6:58 PM Page | 3 The glycolated hemoglobin value represents the integrated values of glucose concentration during the prececding? - Answer️️ -6-8 weeks Monitoring long-term glucose control in patients with adult onset diabetes mellitus can best be accomplished by measuring? - Answer️️ -hemoglobin A1c A patient with Type 1, insulin-depedant diabetes mellitus has the following results. After reviewing these test results, the technologist concluded that the patient is in a? - Answer️️ -improving state of metabolic control as indicated by fructosamine Total glycosylated hemoglobin levels in a hemolysate reflect the? - Answer️️ -average blood glucose levels of the past 2-3 months Which of the following hemoglobins has glucose-6-phosphate on the amine-terminal valine of the beta chain? - Answer️️ -A1c A patient with hemolytic anemia will? - Answer️️ -show a decrease in glycated Hgb value In using ion-exchange chromotographic methods, falsely increased levels Hgb A1c might be demonstrated in the presence of? - Answer️️ -Hgb S An increase in serum acetone is indicative of a defect in the metabolism of? - Answer️️ -carbohydrates An infant with diarrhea is being evaluated for a carbohydrate intolerance. His stool yields a positive copper reduction test and a pH of 5.0. It should be concluded that? - Answer️️ -further tests are indicated ©SOPHIABENNETT EXAM SOLUTIONS Saturday, September 7, 2024 6:58 PM Page | 4 Blood samples were collected at the beginning of an exercise class and after thirty minutes of aerobic activity. Which of the following would be most consistent with the post-exercise sample? - Answer️️ -elevated lactic acid, elevated pyruvate Which of the following is true about direct ion selective electrodes for electrolytes? - Answer️️ -whole blood specimens are acceptable Sodium determination by indirect ion selective electrode is falsely decreased by? - Answer️️ -elevated lipid levels A physician requested that electrolytes on a multiple myeloma patient specimen be run by direct ISE and not indirect ISE because? - Answer️️ -Na is falsely decreased by indirect ISE Which percentage of total serum calcium is nondiffusable protein bound? - Answer️️ - 40%-50% Calcium concentration in the serum is regulated by? - Answer️️ -parathyroid hormone The regulation of calcium and phosphorus metabolism is accomplished by which if the following glands? - Answer️️ -parathyroid A patient has the following test results