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






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






3. A blood sample was received from the emergency room with a request for narcotic analysis. The request slip indicated that the patient (a known heroin addict) responded to naloxone administration. The serum was negative for morphine by EIA. What other






4. Which percentage of total serum calcium is nondiffusible protein bound?






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






6. Serum levels that define hypoglycemia in preterm or low birth weight infants are...






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






8. Bioavailability of a drug refers to the...






9. A potassium level of 6.8 mEq/L is obtained. Before reporting the results - the first step the technologist should take is to...






10. 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






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






12. In the sweat test - the sweating stimulant is introduced to the skin by application of...






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






14. Turbidity in serum suggests elevation of...






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






16. A patient with hemolytic anemia will...






17. 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...






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






19. What specimen preparation is commonly used to perform the alkaline phosphatase isoenzyme determination?






20. To ensure an accurate ammonia level result - the specimen should be...






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






22. A patient with malabsorption receives 25 g of d-xylose orally; during the subsequent 5-hour period - the urine excretion of d-xylose is less than 3 g. This would indicate...






23. Hydrogen ion concentration (pH) in blood is usually determined by means of these electrodes?






24. In developing the reference for a new EIA for CEA - the range for the normal population was broader than that published by the vendor. Controls are acceptable with a narrow coefficient of variation. This may be explained by...






25. The most widely used support medium for electrophoretic separation of lipoproteins is...






26. Amino acid associated with a sulfhydryl group






27. 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...






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






29. Stray light can be detected in a spectrophotometer by utilizing a...






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






31. When taken by a euthyroid individual - oral contraceptives containing estrogens will have this effects on the thyroid function studies






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






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






34. Serum haptoglobin...






35. 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...






36. 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






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






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






39. In the fasting state - the arterial and capillary blood glucose concentration varies from the venous glucose concentration by approximately how many mg/dL?






40. A blood creatinine value of 5.0 mg/dL is most likely to be found with this blood value?






41. This disease is associated with the greatest elevation of lactate dehydrogenase isoenzyme 1?






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






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






44. The first step in analyzing a 24-hour urine specimen for quantitative urine protein is...






45. TSH is produced by the...






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






47. What substance gives feces its normal color?






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






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






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