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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. 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






2. This elevates carboxyhemoglobin?






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






4. The formula for calculating the amount of moles of a chemical?






5. A pH of 7.0 represents a H+ concentration of...






6. In familial hypercholesterolemia - the hallmark finding is an elevation of...






7. A patient in her 33rd week of pregnancy is hospitalized with toxemia. Her doctor would like to deliver the baby early because the toxemia is becoming more severe. The baby's best chance of delivery without respiratory distress due to lung immaturity






8. Fluctuation of the needle on a coulometric type titrator is most probably due to...






9. In developing the reference for a new EIA for CEA - the range for the normal population was broader than that published by the vendor. Controls are acceptable with a narrow coefficient of variation. This may be explained by...






10. The identification of Bence Jones protein is best accomplished by...






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






12. A carbonate salt used to control manic-depressive disorders is...






13. Rickets is associated with deficiency of...






14. 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...






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






16. If the correlation coefficient (r) of two variables is zero...






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






18. In the sweat test - the sweating stimulant is introduced to the skin by application of...






19. The following bilirubin results are obtained on a patient: Day 1: 4.3 mg/dL Day 4: 2.2 mg/dL Day 2: 4.6 mg/dL Day 5: 4.4 mg/dL Day 3: 4.5 mg/dL Day 6: 4.5 mg/dL - Given that the controls were within range each day - what is a probable explanation for






20. The ability of a procedure to measure only the component(s) it claims to measure is called...






21. This enzymes catalyzes the conversion of starch to glucose and maltose






22. Blood specimens for digoxin assays should be obtained between 8 hours or more after drug administration because...






23. Bromcresol purple at a pH of 5.2 is used in a colorimetric method to measure...






24. A breakdown product of hemoglobin is...






25. These enzymes of heme biosynthesis are inhibited by lead






26. The most sensitive enzymatic indicator for liver damage from ethanol intake is...






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






28. A blood gas sample was sent to the lab on ice - and a bubble was present in the syringe. The blood had been exposed to room air for at least 30 minutes. The following change in blood gases occurred...






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






30. 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?






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






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






33. This serum constituent is unstable if a blood specimen is left standing at room temperature for 8 hours before processing






34. Stray light can be detected in a spectrophotometer by utilizing a...






35. Coulometry is used to measure...






36. The method of choice for diagnosis of a protracted attack of porphyria is...






37. In electrophoretic analysis - buffers...






38. The first step to be taken when attempting to repair a piece of electronic equipment is...






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






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






41. The T3 resin uptake test is a measure of...






42. Hydrogen ion concentration (pH) in blood is usually determined by means of these electrodes?






43. This method employs a highly specific antibody to thyroxine






44. The principle of the occult blood test depends on the...






45. Characteristic of the Bence Jones protein that is used to distinguish it from other urinary proteins is its solubility...






46. Testing for the diagnosis of lead poisoning should include...






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






48. A new method is being evaluated. A recovery experiment is performed with the following results: 0.9 mL serum sample + 0.1 mL H20 = 89 mEq/L 0.9 mL serum sample + 0.1 mL analyte std. @ 800 mEq/L = 161 mEq/L The percent recovery of the added analyt






49. 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






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