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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 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






2. Scurvy is associated with deficiency of...






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






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






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






6. This condition does decrease activity of glucuronyl transferase result in increased unconjugated bilirubin and kernicterus in neonates






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






8. What substance gives feces its normal color?






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






10. Currently the most common method for specific identification and quantitation of serum barbiturates is...






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






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






13. The function of the major lipid components of the very low density lipoproteins (VLDL) is to transport...






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






15. Coulometry is used to measure...






16. 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?






17. A chemiluminescent EIA...






18. What specimen preparation is commonly used to perform the alkaline phosphatase isoenzyme determination?






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






20. A serum potassium is 19.5 mg/100 mL. This value is equal to how many mEq/L (MW of K = 39)?






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






22. This serum protein migrates with the beta-globulins on cellulose acetate at pH 8.6...






23. 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...






24. A serum sample for acid phosphatase determination is best prepared for room temperature storage by...






25. 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...






26. In electrophoretic analysis - buffers...






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






28. The T3 resin uptake test is a measure of...






29. Specimens for blood gas determination should be drawn into a syringe containing...






30. 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...






31. In automated methods utilizing a bichromatic analyzer - dual wavelengths are employed to...






32. The definitive diagnosis of primary adrenal insufficiency requires demonstration of...






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






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






35. The protein portion of an enzyme complex is called the...






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






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






38. High levels of which lipoprotein class are associated with decreased risk of accelerated atherosclerosis?






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






40. A patient in her 33rd week of pregnancy is hospitalized with toxemia. Her doctor would like to deliver the baby early because the toxemia is becoming more severe. The baby's best chance of delivery without respiratory distress due to lung immaturity






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






42. 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...






43. In competitive inhibition of an enzyme reaction the...






44. 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...






45. 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






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






47. A condition in which erythrocyte protoporphyrin is increased is...






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






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






50. 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...