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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. Creatinine clearance is used to estimate the...






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






3. Calcium concentration in the serum is regulated by...






4. The fast hemoglobin fraction is...






5. Total iron-binding capacity measures the serum iron transporting capacity of...






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






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






8. This elevates carboxyhemoglobin?






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






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






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






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






13. The serum glucose concentration of a diabetic patient undergoing a 2-hour glucose tolerance test should return to the baseline (fasting level) after a minimum of...






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






15. Characteristic of the Bence Jones protein that is used to distinguish it from other urinary proteins is its solubility...






16. The Henderson-Hasselbalch equation






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






18. Rickets is associated with deficiency of...






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






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






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






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






23. The direction in which albumin migrates (ie - toward anode or cathode) during electrophoretic separation of serum proteins - at pH 8.6 - is determined by...






24. A blood sample was received from the emergency room with a request for narcotic analysis. The request slip indicated that the patient (a known heroin addict) responded to naloxone administration. The serum was negative for morphine by EIA. What other






25. This method employs a highly specific antibody to thyroxine






26. 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...






27. A technician is asked by the supervisor to prepare a standard solution from the stock standard. What is the glassware of choice for this solution?






28. The nanometer is a measurement of...






29. Blood samples were collected at the beginning of an exercise class and after 30 minutes of aerobic activity. This would be most consistent with the postexercise sample






30. The reason carbon monoxide is so toxic is because it...






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






32. 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






33. Beriberi is associated with deficiency of...






34. The biuret reaction for the analysis of serum protein depends on the number...






35. In familial hypercholesterolemia - the hallmark finding is an elevation of...






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






37. If a drug has a half-life of 7 hours - how many doses given at 7-hour intervals does it usually take to achieve a steady state or plateau level?






38. The methodology based on the amount of energy absorbed by a subtance as a function of its concentration and using a specific source of the same material as the substance analyzed is...






39. This diseases results from a familial absence of high-density lioprotein






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






41. 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?






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






43. A potentiometric electrode that measures an analyte that passes through a selectively premeable membrane and rapidly enters into an equilibrium with an electrolyte solution is...






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






45. Upon development of a thin layer chromatogram for the drug analysis - all drug spots (including the standards) had migrated with the solvent front. The most probable cause for this would be...






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






47. Blood was collected in a serum separator tube from a patient who had been fasting since midnight. The time of collection was 7:00 AM. The laboratory test that should be re-collected is...






48. 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...






49. An automated CK assay gives a reading that is above the limits of linearity. A dilution of the serum sample is made by adding 1 mL of serum to 9 mL of water. The instrument now rew 350 U/L. The correct report on the undiluted serum should be...






50. This disease is associated with the greatest elevation of lactate dehydrogenase isoenzyme 1?