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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. Fluctuation of the needle on a coulometric type titrator is most probably due to...






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






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






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






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






6. The following data were obtained on amniotic fluid from a gestation of 36 weeks' duration by menstrual dates: L/S = 2 Phosphatidyl glycerol not present This can be concluded from these data?






7. The most important buffer pair in plasma is the...






8. A spectrophotometer is being considered for purchase by a small laboratory. This specification reflects the spectral purity of the instrument






9. Beriberi is associated with deficiency of...






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






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






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






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






14. Most drugs and intracellular metabolites measured by radioimmunoassay have molecular weights between 200 and 1000 and can be made immunogenic by...






15. 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...






16. The most common type of congenital adrenal hyperplasia associated with increased plasma concentrations of 17 a-hydroxyprogesterone and increased urinary excretion of pregnanetriol is...






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






18. The formula for calculating absorbance given the percent transmittance (%T) of a solution






19. In electrophoretic analysis - buffers...






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






21. 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...






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






23. This electrolyte is the chief plasma cation whose main function is maintaining osmotic pressure






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






25. This is a regulatory hormone.






26. A patient has signs and symptoms suggestive of acromegaly. The diagnosis would be confirmed if the patient had...






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






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






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






30. 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...






31. 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...






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






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






34. 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...






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






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






37. Cerebrospinal fluid for glucose assay should be...






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






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






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






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






42. The ability of a procedure to measure only the component(s) it claims to measure is called...






43. Bromcresol purple at a pH of 5.2 is used in a colorimetric method to measure...






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






45. A chemiluminescent EIA...






46. Magnesium carbonate is added in an iron binding capacity determination in order to...






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






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






49. This elevates carboxyhemoglobin?






50. On immunoassays using enzyme-labeled antibodies or antigens: ___________ can be carried out with a spectrophotometer