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






2. Most chemical methods for determining total protein utilize this reaction?






3. 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?






4. The chemical composition of HDL- cholesterol corresponds to...






5. Aminotransferase enzymes catalyze the...






6. 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...






7. A blood creatinine value of 5.0 mg/dL is most likely to be found with this blood value?






8. The protein portion of an enzyme complex is called the...






9. Assay of transketolase activity in blood is used to detect deficiency of...






10. A potassium level of 6.8 mEq/L is obtained. Before reporting the results - the first step the technologist should take is to...






11. Given the following results: Alkaline phosphatase Marked increase Aminotransferase Slight increase Aspartate aminotransferase Slight increase Alanine gamma-glutamyl transferase Marked increase This is most consistent with...






12. Serum and urine copper levels are assayed on a hospital patient with the following results: Patient Serum Cu: 58 ug/dL; Reference Value:70-140 ug/dL Patient Urine Cu: 83 ug/dL ; Reference Value: < 40 ug/dL This is most consistent with...

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13. This steroid is an adrenal cortical hormone






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






15. While performing a serum lithium determination on a flame photometer with cesium as the internal standard - the technologist noticed that there was a flickering flame. The most probable cause of this problem is...






16. When taken by a euthyroid individual - oral contraceptives containing estrogens will have this effects on the thyroid function studies






17. This method offers the greatest sensitivity for HBsAg testing






18. In the fasting state - the arterial and capillary blood glucose concentration varies from the venous glucose concentration by approximately how many mg/dL?






19. In performing a spinal fluid protein determination - the specimen is diluted 1 part spinal fluid to 3 parts saline to obtain a result low enough to measure. To calculate the protein concentration the result must be...






20. The formula for calculating absorbance given the percent transmittance (%T) of a solution






21. The osmolal gap is defined as measured Osm/kg minus the calculated Osm/kg. The average osmolal gap is near...






22. The definitive diagnosis of primary adrenal insufficiency requires demonstration of...






23. The measurement of light scattered by particles in the sample is the principle of...






24. A blood sample was received from the emergency room with a request for narcotic analysis. The request slip indicated that the patient (a known heroin addict) responded to naloxone administration. The serum was negative for morphine by EIA. What other






25. Thiis serum protein fraction is most likely to be elevated in patients with nephrotic syndrome?






26. Patients with Cushing's syndrome exhibit...






27. This would be an example of a glucose-specific colorimetric method






28. Malic dehydrogenase is added to the aspartate aminotransaminase (AST) reaction to catalyze the conversion of...






29. At a pH of 8.6 the gamma globulins move toward the cathode - despite the fact that they are negatively charged. What is this phenomenon called?






30. Analysis of erythrocytes for uroporphyrinogen I synthetase detects...






31. The most widely used support medium for electrophoretic separation of lipoproteins is...






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






33. The serum glucose concentration of a diabetic patient undergoing a 2-hour glucose tolerance test should return to the baseline (fasting level) after a minimum of...






34. A 68-year-old man arrives in the emergency room with a glucose level of 722 mg/dL and serum acetone of 4+ undiluted. An arterial blood gas from this patient is likely to indicate...






35. Bile acid concentrations are useful to assess...






36. This wavelengths is within the ultraviolet rang.






37. In a double-beam photometer - the additional beam is used to...






38. A common cause of a falsely increased LD1 fraction of lactic dehydrogenase is...






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






40. Detection of carriers of hereditary coproporphyria should include analysis of...






41. A serum sample for acid phosphatase determination is best prepared for room temperature storage by...






42. Which two conditions can "physiologically" elevate serum alkaline phosphatase?






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






44. The greatest activities of serum AST and ALT are seen in...






45. 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...






46. Beriberi is associated with deficiency of...






47. A test request slip indicates that an acute porphyric attack is suspected clinically. Analysis should include...






48. Gas chromatography with the nitrogen/phosphorus detector is the most commonly used technique for the analysis of...






49. 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...






50. A patient with glomerulonephritis would present the following serum results...






Can you answer 50 questions in 15 minutes?



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