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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. A 68-year-old man arrives in the emergency room with a glucose level of 722 mg/dL and serum acetone of 4+ undiluted. An arterial blood gas from this patient is likely to indicate...






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






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






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






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






6. In monitoring glomerular function - this test has the highest sensitivity






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






8. The most widely used support medium for electrophoretic separation of lipoproteins is...






9. Ninety percent of the copper present in plasma is bound to...






10. A blood creatinine value of 5.0 mg/dL is most likely to be found with this blood value?






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






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






13. 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...






14. The relative migration rate of proteins on cellulose acetate is based on...






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






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






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






18. These enzymes of heme biosynthesis are inhibited by lead






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






20. Most chemical methods for determining total protein utilize this reaction?






21. 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...






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






23. The first step in analyzing a 24-hour urine specimen for quantitative urine protein is...






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






25. 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?






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






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






28. A breakdown product of hemoglobin is...






29. Thiis serum protein fraction is most likely to be elevated in patients with nephrotic syndrome?






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






31. This steroid is an adrenal cortical hormone






32. The urea nitrogen concentration of a serum sample was measured as 15 mg/dL (atomic weights: carbon = 12 - oxygen = 16 - nitrogen = 14 - hydrogen = 1). The urea concentration of the same sample - in mg/dL - is...






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






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






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






36. Analysis of erythrocytes for uroporphyrinogen I synthetase detects...






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






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






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






40. 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?






41. This calcium procedure utilizes lanthanum chloride to emliminate iterfering substances






42. Serum haptoglobin...






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






44. The chemical composition of HDL- cholesterol corresponds to...






45. 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...






46. This would be an example of a glucose-specific colorimetric method






47. The presence of this isoenzymes indicates acute myocardial damage






48. Rickets is associated with deficiency of...






49. 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...






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







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