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






2. A 9-month-old boy from Israel has gradually lost the ability to sit up and develops seizures. He has an increased amount of a phospholipid called GM2-ganglioside in his neurons - and he lacks the enzyme hexosaminidase A in his leukocytes. These findi






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. The different water content of erythrocytes and plasma makes true glucose concentrations in whole blood a function of the...






5. 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...






6. In electrophoresis of proteins - when the sample is placed in an electric field connected to a buffer of pH 8.6 - all of the proteins...






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






8. An electrode has a silver/silver chloride anode and a platinum wire cathode. It is suspended in KCl solution and separated from the blood to be analyzed by a selectively permeable membrane. Such an electrode is used to measure...






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






10. Kernicterus is an abnormal accumulation of bilirubin in...






11. Zinc protoporphyrin or free erythrocyte protoporphyrin measurements are useful to assess blood concentrations of...






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






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






14. Amino acid associated with a sulfhydryl group






15. 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...






16. The following data were obtained from a cellulose acetate protein electrophoresis scan: Albumin area 75 units Gamma globulin area 30 units Total area 180 units Total protein 6.5 g/dL The gamma globulin content in g/dL is...






17. A new method is being evaluated. A recovery experiment is performed with the following results: 0.9 mL serum sample + 0.1 mL H20 = 89 mEq/L 0.9 mL serum sample + 0.1 mL analyte std. @ 800 mEq/L = 161 mEq/L The percent recovery of the added analyt






18. Total iron-binding capacity measures the serum iron transporting capacity of...






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






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






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






22. 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






23. Cocaine is metabolized to...






24. 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?






25. Nephelometers measure light...






26. Blood was collected in a serum separator tube from a patient who had been fasting since midnight. The time of collection was 7:00 AM. The laboratory test that should be re-collected is...






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






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






29. The buffering capacity of blood is maintained by a reversible exchange process between bicarbonate and...






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






31. While performing a serum lithium determination on a flame photometer with cesium as the internal standard - the technologist noticed that there was a flickering flame. The most probable cause of this problem is...






32. 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?






33. Major actions of angiotensin II include...






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






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






36. A stool specimen that appears black and tarry should be tested for the presence of...






37. Scurvy is associated with deficiency of...






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






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






40. The fast hemoglobin fraction is...






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






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






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






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






45. The measurement of light scattered by particles in the sample is the principle of...






46. A patient with glomerulonephritis would present the following serum results...






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






48. 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...






49. In developing the reference for a new EIA for CEA - the range for the normal population was broader than that published by the vendor. Controls are acceptable with a narrow coefficient of variation. This may be explained by...






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