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. The following laboratory results were obtained on arterial blood: Sodium 136 mEq/L pH 7.32 Potassium 4.4 mEq/L PCO2 79 mm Hg Chloride 92 mEq/L Bicarbonate 40 mEq/L These results are most compatible with...






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






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






4. Acidosis and alkalosis are best defined as fluctuations in blood pH and CO2 content due to changes in...






5. The anticonvulsant used to control tonic-clonic (grand mal) seizures is...






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






7. A breakdown product of hemoglobin is...






8. An acid cleaning solution for glassware consists of...






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. Cerebrospinal fluid for glucose assay should be...






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






12. 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...






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






14. Phenobarbital is a metabolite of...






15. Specimens for blood gas determination should be drawn into a syringe containing...






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






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






18. 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...






19. 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?






20. An electrode has a silver/silver chloride anode and a platinum wire cathode. It is suspended in KCl solution and separated from the blood to be analyzed by a selectively permeable membrane. Such an electrode is used to measure...






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






22. Diagnostic specificity is defined as the percentage of individuals...






23. 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






24. The formula for calculating serum osmolality that incorporates a correction for the water content of plasma is...






25. The different water content of erythrocytes and plasma makes true glucose concentrations in whole blood a function of the...






26. 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...






27. 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...






28. Diagnostic specificity is defined as the percentage of individuals...






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






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. Gel filtration chromatography is used to separate...






32. Kernicterus is an abnormal accumulation of bilirubin in...






33. High levels of which lipoprotein class are associated with decreased risk of accelerated atherosclerosis?






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






35. This disease is associated with the greatest elevation of lactate dehydrogenase isoenzyme 1?






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






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






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






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






40. Upon development of a thin layer chromatogram for the drug analysis - all drug spots (including the standards) had migrated with the solvent front. The most probable cause for this would be...






41. A cardiac glycoside that is used in the treatment of congenital heart failure and arrhythmias by increasing the force and velocity of myocardial contraction is...






42. In the liver - bilirubin is converted to...






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






44. A patient has the following results: Patient Values : Reference Values: Serum iron 250 ug/dL 60-150 ug/dL TIBC 350 ug/dL 300-35O ug/dL The best conclusion is that this patient has...






45. In a normal individual - injection of thyrotropin-releasing hormone (TRH) causes an increase in blood concentrations of this hormone






46. 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...






47. The fast hemoglobin fraction is...






48. Coulometry is used to measure...






49. Beriberi is associated with deficiency of...






50. This method employs a highly specific antibody to thyroxine