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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. The following laboratory results were obtained: Serum Calcium: Increased - Urine Calcium: Increased - Serum Phosphate: Decreased - Urine Phosphate: Increased Serum Alkaline Phosphatase: Normal or Increased These results are most compatible with...






2. If the correlation coefficient (r) of two variables is zero...






3. Amino acid associated with a sulfhydryl group






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






5. Blood was collected in a serum separator tube from a patient who had been fasting since midnight. The time of collection was 7:00 AM. The laboratory test that should be re-collected is...






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






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






8. This serum protein migrates with the beta-globulins on cellulose acetate at pH 8.6...






9. A low concentrarion of serum phosphorus is commonly found in...






10. 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






11. Upon development of a thin layer chromatogram for the drug analysis - all drug spots (including the standards) had migrated with the solvent front. The most probable cause for this would be...






12. The fast hemoglobin fraction is...






13. Patients with Cushing's syndrome exhibit...






14. TSH is produced by the...






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






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






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






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






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






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






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






22. A fresh urine sample is received for "porphyrins" or "porphyria" without further information or specifications. Initial analysis should include...






23. A 2-year-old child with a decreased serum T4 is described as being somewhat dwarfed - stocky - overweight - and having coarse features. Of the following - the most informative additional laboratory test would be the serum...






24. An electrode has a silver/silver chloride anode and a platinum wire cathode. It is suspended in KCl solution and separated from the blood to be analyzed by a selectively permeable membrane. Such an electrode is used to measure...






25. Following overnight fasting - hypoglycemia in adults is defined as a glucose of...






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






27. Phenobarbital is a metabolite of...






28. An automated CK assay gives a reading that is above the limits of linearity. A dilution of the serum sample is made by adding 1 mL of serum to 9 mL of water. The instrument now rew 350 U/L. The correct report on the undiluted serum should be...






29. In the immunoinhibition phase of the CK-MB procedure...






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






31. Nephelometers measure light...






32. 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...






33. In amniotic fluid - the procedure used to detect Rh isosensitization is...






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






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






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






37. The enzyme present in almost all tissues that may be separated by electrophoresis into five components is...






38. The osmolality of a urine or serum specimen is measured by a change in the...






39. This condition does decrease activity of glucuronyl transferase result in increased unconjugated bilirubin and kernicterus in neonates






40. A patient with myeloproliferative disorder has the following values: Hgb = 13 g/dL Hct = 38% WBC = 30 x 10^3/uL Platelets = 1000 x 10^3/uL Serum Na+ = 140 mEq/L Serum K+ = 7 mEq/L The serum K+ should be confirmed by...






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






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






43. The urea nitrogen concentration of a serum sample was measured as 15 mg/dL (atomic weights: carbon = 12 - oxygen = 16 - nitrogen = 14 - hydrogen = 1). The urea concentration of the same sample - in mg/dL - is...






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






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






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






47. The following data were obtained on amniotic fluid from a gestation of 36 weeks' duration by menstrual dates: L/S = 2 Phosphatidyl glycerol not present This can be concluded from these data?






48. The chemical composition of HDL- cholesterol corresponds to...






49. The expected blood gas results for a patient in chronic renal failure would match the pattern of...






50. 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?