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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. Aminotransferase enzymes catalyze the...






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






3. A 2-year-old child with a decreased serum T4 is described as being somewhat dwarfed - stocky - overweight - and having coarse features. Of the following - the most informative additional laboratory test would be the serum...






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






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






6. The presence of this isoenzymes indicates acute myocardial damage






7. These enzymes of heme biosynthesis are inhibited by lead






8. Spectrophotometers isolate a narrow band pass by means of...






9. A true statement about high performance liquid chromatography (HPLC) is that it...






10. The extent to which measurements agree with or approach the true value of the quantity being measured is referred to as...






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






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






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






14. In electrophoresis of serum proteins - arifacts at the application point are most frequently caused by...






15. A patient is admitted to the emergency room in a state of metabolic alkalosis.This would be consistent with this diagnosis?






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






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






18. 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






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






20. 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...






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






22. The most widely employed screening technique for drug abuse is...






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






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






25. The reason carbon monoxide is so toxic is because it...






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






27. 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...






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






29. 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...






30. The normal concentration of proteins in cerebrospinal fluid - relative to serum protein - is...






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






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






33. To ensure an accurate ammonia level result - the specimen should be...






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






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






36. A serum potassium is 19.5 mg/100 mL. This value is equal to how many mEq/L (MW of K = 39)?






37. 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...






38. A reciprocal relationship exists between...






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






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






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






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






43. As part of a hyperlipidemia screening program - the following results were obtained on a 25 year old woman 6 hours after eating:Triglycerides = 260 mg/dLCholesterol = 120 mg/dL - This is the BEST interpretation of these results?






44. Unless blood gas measurements are made immediately after sampling - in vitro glycolysis of the blood causes a...






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






46. Beriberi is associated with deficiency of...






47. Most drugs and intracellular metabolites measured by radioimmunoassay have molecular weights between 200 and 1000 and can be made immunogenic by...






48. 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?






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






50. This elevates carboxyhemoglobin?







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