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






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






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






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






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






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






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






8. This applies to cryoscopic osmometry






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






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






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






12. 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?






13. An electrophoretic separation of lactate dehydrogenase isoenzymes that demonstrates an elevation in LD-l and LD-2 in a "flipped" pattern is consistent with...






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






15. A breakdown product of hemoglobin is...






16. The identification of Bence Jones protein is best accomplished by...






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






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






19. In performing a spinal fluid protein determination - the specimen is diluted 1 part spinal fluid to 3 parts saline to obtain a result low enough to measure. To calculate the protein concentration the result must be...






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






21. 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...






22. A common cause of a falsely increased LD1 fraction of lactic dehydrogenase is...






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






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






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






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






27. This is a regulatory hormone.






28. These enzymes of heme biosynthesis are inhibited by lead






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






30. The presence of this isoenzymes indicates acute myocardial damage






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






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






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






34. Bile acid concentrations are useful to assess...






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






36. A chemiluminescent EIA...






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






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






39. The nanometer is a measurement of...






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






41. 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...






42. The stimulant that causes localized sweating for the sweat test is...






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






44. The electrophoretic pattern of a plasma sample compared with a serum sample shows a...






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






46. The Henderson-Hasselbalch equation






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






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






49. 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...






50. 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