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






2. Which percentage of total serum calcium is nondiffusible protein bound?






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






4. The electrophoretic pattern of a plasma sample compared with a serum sample shows a...






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






6. At blood pH 7.40 what is the ratio between bicarbonate and carbonic acid?






7. A reciprocal relationship exists between...






8. This is a regulatory hormone.






9. A low concentrarion of serum phosphorus is commonly found in...






10. Aminotransferase enzymes catalyze the...






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






12. Amino acid associated with a sulfhydryl group






13. The general types of interference in atomic absorption spectrophotometry...






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






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






16. A patient with myeloproliferative disorder has the following values: Hgb = 13 g/dL Hct = 38% WBC = 30 x 10^3/uL Platelets = 1000 x 10^3/uL Serum Na+ = 140 mEq/L Serum K+ = 7 mEq/L The serum K+ should be confirmed by...






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






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






19. In the atomic absorption method for calcium - lanthanum is used...






20. The hemoglobin that is resistant to alkali (KOH) denaturation is...






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






22. 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...






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






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






25. The osmolal gap is defined as measured Osm/kg minus the calculated Osm/kg. The average osmolal gap is near...






26. Following overnight fasting - hypoglycemia in adults is defined as a glucose of...






27. Which blood gas electrode is composed of calomel and glass?






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






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






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






31. A one MOLAL solution is equivalent to...






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






33. 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...






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






35. 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






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






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






38. Given the following results: Alkaline phosphatase Marked increase Aminotransferase Slight increase Aspartate aminotransferase Slight increase Alanine gamma-glutamyl transferase Marked increase This is most consistent with...






39. An HPLC operator notes that the column pressure is too high - is rising too rapidly - and the recorder output is not producing normal peaks. The most probable cause of the problem is...






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






41. This serum protein migrates with the beta-globulins on cellulose acetate at pH 8.6...






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






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






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






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






46. Phenobarbital is a metabolite of...






47. Most automated blood gas analyzers directly measure...






48. This hemoglobin has glucose-6-phosphate on the amino-terminal valine of the beta chain?






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






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






Can you answer 50 questions in 15 minutes?



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