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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. Scurvy is associated with deficiency of...






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






3. The osmolality of a urine or serum specimen is measured by a change in the...






4. Respiratory acidosis is described as a(n): ______ increase in CO2 decrease in pH






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






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






7. Cerebrospinal fluid for glucose assay should be...






8. Aminotransferase enzymes catalyze the...






9. In using ion-exchange chromatographicbmethods - falsely increased levels of Hgb A1c will be demonstrated in presence of...






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






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






12. This wavelengths is within the ultraviolet rang.






13. A patient had the following serum results: Na+ 140 mEq/L K+ 4.0 mEq/L Glucose 95 mg/dL BUN 10 mg/dL Which osmolality is consistent with these results?






14. Four children are admitted with malaise - anorexia - and abdominal pain. Further evaluations reveal mild anemia - erythrocyte basophilic stippling - and profound pica habits. Poisoning by which heavy metal is most likely responsible?






15. A thick white turbid specimen was received in the laboratory labeled as pericardial fluid. A microscopic examination was performed - and the differential included 90% PMNs. The fluid is...






16. 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...






17. 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...






18. The test for adrenal cortical hyperfunction that has the greatest diagnostic sensitivity is measurement of...






19. Rickets is associated with deficiency of...






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






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






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






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






24. Maple syrup urine disease is characterized by an increase in this urinary amino acids






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






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






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






28. The formation of estriol in a pregnant woman is dependent on...






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






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






31. 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?






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






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






34. A sweat chloride result of 55 mEq/L and a sweat sodium of 52 mEq/L were obtained ona patient who has a history of respiratory problems. The bestc interpretation of these results is...






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






36. This lipid results would be expected to be falsely elevated on a serum specimen from a nonfasting patient






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






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






39. The TRH (thyrotropin-releasing hormone) stimulation test is useful in assessing...






40. This is a characteristic shared by lactate dehydrogenase - malate dehydrogenase - isocitrate dehydrogenase - and hydroxybutyrate dehydrogenase?






41. Enzymes used in the diagnosis of acute pancreatitis?






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






43. The concentration of serum carotene is affected MOST by...






44. Beriberi is associated with deficiency of...






45. This method employs a highly specific antibody to thyroxine






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. Calcium concentration in the serum is regulated by...






48. Serum anion gap is increased in patients with...






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






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