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Chemistry Certification

Subject : certifications
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. The different water content of erythrocytes and plasma makes true glucose concentrations in whole blood a function of the...






2. In electrophoresis of proteins - when the sample is placed in an electric field connected to a buffer of pH 8.6 - all of the proteins...






3. The expected blood gas results for a patient in chronic renal failure would match the pattern of...






4. Technical problems encountered during the collection of an amniotic fluid specimen caused doubt as to whether the specimen was amniotic in origin. This procedure would establish that the fluid is amniotic in origin






5. In competitive inhibition of an enzyme reaction the...






6. This diseases results from a familial absence of high-density lioprotein






7. A 45-year-old woman complains of fatigue - heat intolerance - and hair loss. Serum thyroxine and 125I-T3 resin uptake are abnormally low. What test would confirm that this is a pituitary deficiency?






8. The following laboratory results were obtained: Serum Calcium: Increased - Urine Calcium: Increased - Serum Phosphate: Decreased - Urine Phosphate: Increased Serum Alkaline Phosphatase: Normal or Increased These results are most compatible with...






9. Amino acid associated with a sulfhydryl group






10. The most specific enzyme test for acute pancreatitis is...






11. When the exact concentration of the solute of a solution is known and is used to evaluate the concentration of an unknown solution - the known solution is...






12. In the Jaffe reaction - creatine reacts with...






13. Upon completion of a run of cholesterol tests - the technician recognizes that the controls are not within the two standard deviations confidence range. What is the appropriate course of action?






14. About 90% of phenytoin is excreted in the urine as...






15. When myocardial infarction occurs - the first enzyme to become elevated is...






16. Upon completion of a run of cholesterol tests - the technician recognizes that the controls are not within the two standard deviations confidence range. What is the appropriate course of action






17. A 21-year-old man with nausea - vomiting - and jaundice has the following laboratory findings: Total serum bilirubin level: 8.5 mg/dL (normal - 0-1.0) Conjugated serum bilirubin level: 6.1 mg/dL (normal - 0-0.5) Urine urobilinogen: Increased Fecal u






18. Serum from a patient with metastatic carcinoma of the prostate was separated from the clot and stored at room temperature. The following results were obtained: Patient Reference Range Calcium: 10.8 mg/dL 8.8-10.3 mg/dL LD:420 U/L 50-150 U/L Acid phos






19. This is a glycolytic enzyme that catalyzes the cleavage of fructose-1 - 6-diphosphate to glyceraldehyde-3-phosphate and dihydroxyacetone phosphate






20. What specimen preparation is commonly used to perform the alkaline phosphatase isoenzyme determination?






21. The test for adrenal cortical hyperfunction that has the greatest diagnostic sensitivity is measurement of...






22. Serum anion gap is increased in patients with...






23. Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) are both elevated in this disease






24. One international unit of enzyme activity is the amount of enzyme that - under specified reaction conditions of substrate concentration - pH - and temperature - causes utilization of substrate at the rate of...






25. An emphysema patient suffering from fluid accumulation in the alveolar spaves is likely to be in what metabolic state?






26. An increase in serum acetone is indicative of a defect in the metabolism of...






27. Zinc protoporphyrin or free erythrocyte protoporphyrin measurements are useful to assess blood concentrations of...






28. The following five sodium control values (mEq/L) were obtained:140 - 135 - 138 - 140 - 142Calculate the coefficient of variation.






29. A chemiluminescent EIA...






30. A sweat chloride result of 55 mEq/L and a sweat sodium of 52 mEq/L were obtained ona patient who has a history of respiratory problems. The bestc interpretation of these results is...






31. A patient is admitted with biliary cirrhosis. If a serum protein electrophoresis is preformed - these globulin fractions will be most elevated?






32. Coulometry is used to measure...






33. The most common type of congenital adrenal hyperplasia associated with increased plasma concentrations of 17 a-hydroxyprogesterone and increased urinary excretion of pregnanetriol is...






34. Magnesium carbonate is added in an iron binding capacity determination in order to...






35. The selectivity of an ion-selective electrode is determined by the...






36. The urea nitrogen concentration of a serum sample was measured as 15 mg/dL (atomic weights: carbon = 12 - oxygen = 16 - nitrogen = 14 - hydrogen = 1). The urea concentration of the same sample - in mg/dL - is...






37. The unit of measure for a standard solution is...






38. This 2-hour postprandial glucose values demonstrates unequivocal hyperglycemia diagnostic for diabetes mellitus






39. Serum concentrations of vitamin B12 are elevated in...






40. A potentiometric electrode that measures an analyte that passes through a selectively premeable membrane and rapidly enters into an equilibrium with an electrolyte solution is...






41. Measurement of total T4 by competitive protein binding or displacement is based on the specific binding properties of...






42. In automated methods utilizing a bichromatic analyzer - dual wavelengths are employed to...






43. A patient with myeloproliferative disorder has the following values: Hgb = 13 g/dL Hct = 38% WBC = 30 x 10^3/uL Platelets = 1000 x 10^3/uL Serum Na+ = 140 mEq/L Serum K+ = 7 mEq/L The serum K+ should be confirmed by...






44. Turbidity in serum suggests elevation of...






45. After a difficult venipuncture requiring prolonged application of the tourniquet - the serum K+ was found to be 6.8 mEq/L. The best course of action is to...






46. The glucose level in normal peritoneal fluid should be...






47. This wavelengths is within the ultraviolet rang.






48. A patient with malabsorption receives 25 g of d-xylose orally; during the subsequent 5-hour period - the urine excretion of d-xylose is less than 3 g. This would indicate...






49. The function of the major lipid components of the very low density lipoproteins (VLDL) is to transport...






50. Following overnight fasting - hypoglycemia in adults is defined as a glucose of...







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