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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. Bile acid concentrations are useful to assess...






2. Bromcresol purple at a pH of 5.2 is used in a colorimetric method to measure...






3. The biologically most active - naturally occuring androgen is...






4. This serum constituent is unstable if a blood specimen is left standing at room temperature for 8 hours before processing






5. Turbidity in serum suggests elevation of...






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






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






8. A true statement about high performance liquid chromatography (HPLC) is that it...






9. Serum haptoglobin...






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






11. 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...






12. 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...






13. This wavelengths is within the ultraviolet rang.






14. A 24-hour urine specimen (total volume = 1136 mL) is submitted to the laboratory for quantitative urine protein. Calculate the amount of protein excreted per day - if the total protein is 52 mg/dL.






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






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






17. Detection of carriers of hereditary coproporphyria should include analysis of...






18. The enzyme that exists chiefly in skeletal muscle - heart - and brain; is grossly elevated in active muscular dystrophy; and rises early in myocardial infarction is...






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






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






21. 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...






22. The most specific enzyme test for acute pancreatitis is...






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






24. Kernicterus is an abnormal accumulation of bilirubin in...






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






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






27. 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)






28. One means of checking a spectrophotometer wavelength calibration in the visible range is by using a...






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






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






31. Certain enzymes are activated to metabolize drugs as a result of another drug action. This is referred to as...






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






33. A pH of 7.0 represents a H+ concentration of...






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






35. Which blood gas electrode is composed of calomel and glass?






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






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






38. 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...






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






40. The Henderson-Hasselbalch equation






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






42. Alkaline phosphatase Slight increase - Aminotransferase Marked increase - Aspartate aminotransferase Marked increase - Alanine gamma-glutamyl transferase Slight increase






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






44. The major fraction of organic iodine in the circulation is in the form of...






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






46. In a double-beam photometer - the additional beam is used to...






47. Blood received in the laboratory for blood gas analysis must meet these requirements






48. 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






49. A person suspected of having metabolic alkalosis would have these laboratory findings






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







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