Test your basic knowledge |

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. 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?






2. 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...






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






4. In an internal standard flame photometer - the internal standard is used to...






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






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






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






8. The most consistent analytical error involved in the routine determination of HDLcholesterol is caused by...






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






10. The stimulant that causes localized sweating for the sweat test is...






11. The main reason for suboptimal drug levels in therapeutic drug monitoring is...






12. In respiratory acidosis - a compensatory mechanism is the increase in...






13. Lasting serum phosphate concentration is controlled primarily by the...






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






15. Scurvy is associated with deficiency of...






16. 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...






17. The major fraction of organic iodine in the circulation is in the form of...






18. In thin layer chromatography - the Rf value for a compound is given by the...






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






20. When separating serum proteins by cellulose acetate electrophoresis using veronal buffer at pH 8.6 - beta globulin migrates...






21. A person suspected of having metabolic alkalosis would have these laboratory findings






22. The Porter-Silber method (phenylhydrazine in alcohol and sulfuric acid) involves which part of the steroid molecule?






23. The enzyme present in almost all tissues that may be separated by electrophoresis into five components is...






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






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






26. Blood received in the laboratory for blood gas analysis must meet these requirements






27. A technician is asked by the supervisor to prepare a standard solution from the stock standard. What is the glassware of choice for this solution?






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






29. Lithium therapy is widely used in the treatment of...






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






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






32. TSH is produced by the...






33. 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...






34. An electrophoretic separation of lactate dehydrogenase isoenzymes that demonstrates an elevation in LD-l and LD-2 in a "flipped" pattern is consistent with...






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






36. The fast hemoglobin fraction is...






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






38. A condition in which erythrocyte protoporphyrin is increased is...






39. Clinical assays for tumor markers are the most important for...






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






41. Before unconjugated bilirubin can react with Ehrlich's diazo reagent - this must be added






42. A critically ill patient becomes comatose. The physician believes the coma is due to hepatic failure. The assay most helpful in this diagnosis is...






43. Given the following values:100;120;150;140;130;What is the mean?






44. Major actions of angiotensin II include...






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






46. Enzymes used in the diagnosis of acute pancreatitis?






47. Sixty to seventy-five percent of the plasma cholesterol is transported by...






48. One means of checking a spectrophotometer wavelength calibration in the visible range is by using a...






49. The regulation of calcium and phosphorus metabolism is accomplished by which gland?






50. Amniotic fluid submitted for a lecithin/sphingomyelin (US) ratio has been left in a brown container since the night before. You would expect...