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 fast hemoglobin fraction is...






2. Assay of transketolase activity in blood is used to detect deficiency of...






3. Oligoclonal bands are present on electrophoresis of concentrated CSF and also on concurrently tested serum of the same patient. The proper interpretation is...






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






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






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






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






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






9. An automated method for measuring chloride that generates silver ions in the reaction is...






10. Pregnant women with symptoms of thirst - frequent urination - or unexplained weight loss should have this test performed?






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






12. In spectrophotometric determination - this is the formula for calculating the absorbance of a solution






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






14. 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...






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






16. Given the following values:100;120;150;140;130;What is the mean?






17. A blood sample was received from the emergency room with a request for narcotic analysis. The request slip indicated that the patient (a known heroin addict) responded to naloxone administration. The serum was negative for morphine by EIA. What other






18. The method of choice for diagnosis of a protracted attack of porphyria is...






19. A common cause of respiratory alkalosis is...






20. The presence of this isoenzymes indicates acute myocardial damage






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






22. This method employs a highly specific antibody to thyroxine






23. Beriberi is associated with deficiency of...






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






25. A patient is admitted with biliary cirrhosis. If a serum protein electrophoresis is preformed - these globulin fractions will be most elevated?






26. 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...






27. Alkaline phosphatase Slight increase - Aminotransferase Marked increase - Aspartate aminotransferase Marked increase - Alanine gamma-glutamyl transferase Slight increase






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






29. The most consistent analytical error involved in the routine determination of HDLcholesterol is caused by...






30. A 45-year-old woman has a fasting serum glucose concentration of 95 mg/dL and a 2-hour postprandial glucose concentration of 105 mg/dL. The statement that best describes this patient's fasting serum glucose concentration is...






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






32. The following blood gas results were obtained: pH : 7.18 PO2: 86 mm Hg PCO2: 60 mm Hg O2 saturation: 92% HCO3-: 21 mEq/L TCO2: 23 mEq/L Base excess: -8.0 mEq/L The patient's results are compatible with...






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






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






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






36. The biologically most active - naturally occuring androgen is...






37. This chemical determination may be of help in establishing the presence of seminal fluid






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






39. The following results were obtained in a creatinine clearance evaluation: Urine concentration 84 mg/dL Urine volume 1440 mL/24 hr Serum concentration 1.4 mg/dL Body surface area 1.60 m2 (average = 1.73 m2) The creatinine cle~trance in mL/min is...






40. A psychiatric patient was experiencing sever depression - but responded to treatment with amitriptyline with no apparent side effects. A blood sample was sent to the laboratory for therapeutic monitoring. Which drug level would be MOST reflective of






41. 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...






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






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






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






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






46. 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...






47. A serum sample was assayed for bilirubin at 10 AM and the result was 12 mg/dL. The same sample was retested at 3 PM. The result now is 8 mg/dL. The most likely explanation for this discrepancy is...






48. Major actions of angiotensin II include...






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






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