Test your basic knowledge |

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. Nephelometers measure light...






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






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






4. The nanometer is a measurement of...






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






6. The TRH (thyrotropin-releasing hormone) stimulation test is useful in assessing...






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






8. Beriberi is associated with deficiency of...






9. The most sensitive enzymatic indicator for liver damage from ethanol intake is...






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






11. 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?






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






13. An emphysema patient suffering from fluid accumulation in the alveolar spaves is likely to be in what metabolic state?






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






15. In performing a spinal fluid protein determination - the specimen is diluted 1 part spinal fluid to 3 parts saline to obtain a result low enough to measure. To calculate the protein concentration the result must be...






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






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






18. Upon completion of a run of cholesterol tests - the technician recognizes that the controls are not within the two standard deviations confidence range. What is the appropriate course of action?






19. A patient has the following results: Patient Values : Reference Values: Serum iron 250 ug/dL 60-150 ug/dL TIBC 350 ug/dL 300-35O ug/dL The best conclusion is that this patient has...






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






21. In the atomic absorption method for calcium - lanthanum is used...






22. High levels of which lipoprotein class are associated with decreased risk of accelerated atherosclerosis?






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






24. The following laboratory results were obtained on arterial blood: Sodium 136 mEq/L pH 7.32 Potassium 4.4 mEq/L PCO2 79 mm Hg Chloride 92 mEq/L Bicarbonate 40 mEq/L These results are most compatible with...






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






26. Cocaine is metabolized to...






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






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






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






30. Most chemical methods for determining total protein utilize this reaction?






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






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






33. The normal concentration of proteins in cerebrospinal fluid - relative to serum protein - is...






34. Given the following results: Alkaline phosphatase Marked increase Aminotransferase Slight increase Aspartate aminotransferase Slight increase Alanine gamma-glutamyl transferase Marked increase This is most consistent with...






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






36. When the exact concentration of the solute of a solution is known and is used to evaluate the concentration of an unknown solution - the known solution is...






37. This applies to cryoscopic osmometry






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






39. The buffer pH most effective at allowing amphoteric proteins to migrate toward the cathode in an electrophoretic system would be...






40. An Rf value of 0.5 in thin-layer chromatography means...






41. The anion gap is useful for quality control of laboratory results for...






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






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






44. A common cause of a falsely increased LD1 fraction of lactic dehydrogenase is...






45. The measurement of light scattered by particles in the sample is the principle of...






46. Specimens for blood gas determination should be drawn into a syringe containing...






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






48. TSH is produced by the...






49. What substance gives feces its normal color?






50. 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...