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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. One international unit of enzyme activity is the amount of enzyme that - under specified reaction conditions of substrate concentration - pH - and temperature - causes utilization of substrate at the rate of...






2. In the assay of lactate dehydrogenase - this product is actually measured






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






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






5. Rickets is associated with deficiency of...






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






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






8. The Henderson-Hasselbalch equation






9. Measurement of total T4 by competitive protein binding or displacement is based on the specific binding properties of...






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






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






12. Maple syrup urine disease is characterized by an increase in this urinary amino acids






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






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






15. Major actions of angiotensin II include...






16. In spectrophotometric determination - this is the formula for calculating the absorbance of a solution






17. A chemiluminescent EIA...






18. This elevates carboxyhemoglobin?






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






20. 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?






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 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...






23. Serum concentrations of vitamin B12 are elevated in...






24. The greatest activities of serum AST and ALT are seen in...






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






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






27. Beriberi is associated with deficiency of...






28. A 25-year-old man became nauseated and vomited 90 minutes after receiving a standard 75-g carbohydrate dose for an oral glucose tolerance test. The best course of action is...






29. In a normal individual - injection of thyrotropin-releasing hormone (TRH) causes an increase in blood concentrations of this hormone






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






31. In using ion-exchange chromatographicbmethods - falsely increased levels of Hgb A1c will be demonstrated in presence of...






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






33. Regan isoenzyme has the same properties as alkaline phosphatase that originates in the...






34. The anticonvulsant used to control tonic-clonic (grand mal) seizures is...






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






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






37. Isoenzyme assays are preformed to improve...






38. TSH is produced by the...






39. In thin layer chromatography - the Rf value for a compound is given by the...






40. A breakdown product of hemoglobin is...






41. This enzyme substrates for prostatic acid phosphatase determination results in the highest specificity






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






43. At blood pH 7.40 what is the ratio between bicarbonate and carbonic acid?






44. Aminotransferase enzymes catalyze the...






45. 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...






46. How many grams of sodium chloride are needed to prepare 1 L of 0.9% normal saline?






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






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






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






50. 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?