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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. Cocaine is metabolized to...






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






3. The most widely used support medium for electrophoretic separation of lipoproteins is...






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






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






6. Given the following values:100;120;150;140;130;What is the mean?






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






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






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






10. While performing a serum lithium determination on a flame photometer with cesium as the internal standard - the technologist noticed that there was a flickering flame. The most probable cause of this problem is...






11. Which percentage of total serum calcium is nondiffusible protein bound?






12. Technical problems encountered during the collection of an amniotic fluid specimen caused doubt as to whether the specimen was amniotic in origin. This procedure would establish that the fluid is amniotic in origin






13. This chemical determination may be of help in establishing the presence of seminal fluid






14. Zinc protoporphyrin or free erythrocyte protoporphyrin measurements are useful to assess blood concentrations of...






15. The first step in analyzing a 24-hour urine specimen for quantitative urine protein is...






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






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






18. A reciprocal relationship exists between...






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






20. This calcium procedure utilizes lanthanum chloride to emliminate iterfering substances






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






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






23. What substance gives feces its normal color?






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






25. A potassium level of 6.8 mEq/L is obtained. Before reporting the results - the first step the technologist should take is to...






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. Ion selective electrodes are called selective rather than specific because they actually measure the...






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






29. Spectrophotometers isolate a narrow band pass by means of...






30. This steroid is an adrenal cortical hormone






31. This is a regulatory hormone.






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






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






34. Enzymes used in the diagnosis of acute pancreatitis?






35. 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...






36. 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?






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






38. Lithium therapy is widely used in the treatment of...






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






40. A psychiatric patient was experiencing sever depression - but responded to treatment with amitriptyline with no apparent side effects. A blood sample was sent to the laboratory for therapeutic monitoring. Which drug level would be MOST reflective of






41. 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...






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






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






44. This is a glycolytic enzyme that catalyzes the cleavage of fructose-1 - 6-diphosphate to glyceraldehyde-3-phosphate and dihydroxyacetone phosphate






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






46. Sixty to seventy-five percent of the plasma cholesterol is transported by...






47. These enzymes of heme biosynthesis are inhibited by lead






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






49. The following five sodium control values (mEq/L) were obtained:140 - 135 - 138 - 140 - 142Calculate the coefficient of variation.






50. 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...






Can you answer 50 questions in 15 minutes?



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