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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. The anion gap is useful for quality control of laboratory results for...






2. Aminotransferase enzymes catalyze the...






3. 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...






4. Serum levels that define hypoglycemia in preterm or low birth weight infants are...






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






6. These enzymes of heme biosynthesis are inhibited by lead






7. Serum haptoglobin...






8. A patient with hemolytic anemia will...






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






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






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






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






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






14. An increase in serum acetone is indicative of a defect in the metabolism of...






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






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






17. A course of instruction is being planned to teach laboratory employees to correct simple malfunctions in selected laboratory instruments. In writing the objectives for this course - this would be most appropriate?






18. The preparation of a patient for standard tolerance testing should include...






19. 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...






20. A patient with type I insulin-dependent diabetes mellitus has the following results: Fasting blood glucose: 150 mg/dL (70-110 rng/dL) Hemoglobin A1c: 25% (6.0%-19.5%) Fructosamine: 3.0 mmol/L ( 2.0-5.3 mmol/L)






21. A patient with malabsorption receives 25 g of d-xylose orally; during the subsequent 5-hour period - the urine excretion of d-xylose is less than 3 g. This would indicate...






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






23. One means of checking a spectrophotometer wavelength calibration in the visible range is by using a...






24. Lasting serum phosphate concentration is controlled primarily by the...






25. The most widely employed screening technique for drug abuse is...






26. Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) are both elevated in this disease






27. 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






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






29. 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?






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






31. The main reason for suboptimal drug levels in therapeutic drug monitoring is...






32. A potassium level of 6.8 mEq/L is obtained. Before reporting the results - the first step the technologist should take is to...






33. Malic dehydrogenase is added to the aspartate aminotransaminase (AST) reaction to catalyze the conversion of...






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






35. Sixty to seventy-five percent of the plasma cholesterol is transported by...






36. Major actions of angiotensin II include...






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






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






39. 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...






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






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






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






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






44. A patient is admitted to the emergency room in a state of metabolic alkalosis.This would be consistent with this diagnosis?






45. The formula for calculating the amount of moles of a chemical?






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






47. 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






48. 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...






49. Acidosis and alkalosis are best defined as fluctuations in blood pH and CO2 content due to changes in...






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






Can you answer 50 questions in 15 minutes?



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