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






2. 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...






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






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






5. The most widely employed screening technique for drug abuse is...






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






7. A patient with type I insulin-dependent diabetes mellitus has the following results: Fasting blood glucose: 150 mg/dL (70-110 rng/dL) Hemoglobin A1c: 25% (6.0%-19.5%) Fructosamine: 3.0 mmol/L ( 2.0-5.3 mmol/L)






8. 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...






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






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






11. A new method is being evaluated. A recovery experiment is performed with the following results: 0.9 mL serum sample + 0.1 mL H20 = 89 mEq/L 0.9 mL serum sample + 0.1 mL analyte std. @ 800 mEq/L = 161 mEq/L The percent recovery of the added analyt






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






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






14. Serum anion gap is increased in patients with...






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






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






17. Thiis serum protein fraction is most likely to be elevated in patients with nephrotic syndrome?






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






19. Unless blood gas measurements are made immediately after sampling - in vitro glycolysis of the blood causes a...






20. The most consistent analytical error involved in the routine determination of HDLcholesterol is caused by...






21. On immunoassays using enzyme-labeled antibodies or antigens: ___________ can be carried out with a spectrophotometer






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






23. The first step to be taken when attempting to repair a piece of electronic equipment is...






24. Creatinine clearance is used to estimate the...






25. 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






26. Gas chromatography with the nitrogen/phosphorus detector is the most commonly used technique for the analysis of...






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






28. 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...






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






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






31. The formula for coefficient of variation?






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






33. The fast hemoglobin fraction is...






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






35. Coulometry is used to measure...






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






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






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






39. The relative migration rate of proteins on cellulose acetate is based on...






40. 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






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






42. Measurement of the serum acid phosphatase is used to detect neoplastic disease of the...






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






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






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






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






47. This 2-hour postprandial glucose values demonstrates unequivocal hyperglycemia diagnostic for diabetes mellitus






48. This lipid results would be expected to be falsely elevated on a serum specimen from a nonfasting patient






49. In monitoring glomerular function - this test has the highest sensitivity






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