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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. Rickets is associated with deficiency of...






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






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






4. The preparation of a patient for standard tolerance testing should include...






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






6. Cocaine is metabolized to...






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






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






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






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






11. As part of a hyperlipidemia screening program - the following results were obtained on a 25 year old woman 6 hours after eating:Triglycerides = 260 mg/dLCholesterol = 120 mg/dL - This is the BEST interpretation of these results?






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






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






14. Before unconjugated bilirubin can react with Ehrlich's diazo reagent - this must be added






15. This enzymes catalyzes the conversion of starch to glucose and maltose






16. The extent to which measurements agree with or approach the true value of the quantity being measured is referred to as...






17. A spectrophotometer is being considered for purchase by a small laboratory. This specification reflects the spectral purity of the instrument






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






19. An acid cleaning solution for glassware consists of...






20. Measurement of total T4 by competitive protein binding or displacement is based on the specific binding properties of...






21. At a pH of 8.6 the gamma globulins move toward the cathode - despite the fact that they are negatively charged. What is this phenomenon called?






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






23. The test for adrenal cortical hyperfunction that has the greatest diagnostic sensitivity is measurement of...






24. 4 mL of water is added to 1 mL of serum. This represents this serum dilutions






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






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






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






28. The unit of measure for a standard solution is...






29. 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...






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






31. Bile acid concentrations are useful to assess...






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. This steroid is an adrenal cortical hormone






34. The Porter-Silber method (phenylhydrazine in alcohol and sulfuric acid) involves which part of the steroid molecule?






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






36. The ability of a procedure to measure only the component(s) it claims to measure is called...






37. In automated methods utilizing a bichromatic analyzer - dual wavelengths are employed to...






38. Clinical assays for tumor markers are the most important for...






39. In electrophoresis of serum proteins - arifacts at the application point are most frequently caused by...






40. When separating serum proteins by cellulose acetate electrophoresis using veronal buffer at pH 8.6 - beta globulin migrates...






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






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






43. An HPLC operator notes that the column pressure is too high - is rising too rapidly - and the recorder output is not producing normal peaks. The most probable cause of the problem is...






44. A fasting serum sample from an asymptomatic 43-year-old woman is examined visually chemically with the following results: Initial appearance of serum: Milky Appearance of serum after overnight refrigeration: Cream layer over turbid serum Triglyceri






45. The fast hemoglobin fraction is...






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






47. A reciprocal relationship exists between...






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






49. 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...






50. The Henderson-Hasselbalch equation