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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 bilirubin results are obtained on a patient: Day 1: 4.3 mg/dL Day 4: 2.2 mg/dL Day 2: 4.6 mg/dL Day 5: 4.4 mg/dL Day 3: 4.5 mg/dL Day 6: 4.5 mg/dL - Given that the controls were within range each day - what is a probable explanation for






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






3. Isoenzyme assays are preformed to improve...






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






5. 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...






6. The osmolal gap is defined as measured Osm/kg minus the calculated Osm/kg. The average osmolal gap is near...






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






8. The general types of interference in atomic absorption spectrophotometry...






9. A patient has signs and symptoms suggestive of acromegaly. The diagnosis would be confirmed if the patient had...






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






11. After a difficult venipuncture requiring prolonged application of the tourniquet - the serum K+ was found to be 6.8 mEq/L. The best course of action is to...






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






13. The formation of estriol in a pregnant woman is dependent on...






14. The most widely employed screening technique for drug abuse is...






15. Blood samples were collected at the beginning of an exercise class and after 30 minutes of aerobic activity. This would be most consistent with the postexercise sample






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






17. TSH is produced by the...






18. 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...






19. Estrogen and progesterone receptor assays are useful in assessing prognosis in...?






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






21. The reason carbon monoxide is so toxic is because it...






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






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






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






25. Turbidity in serum suggests elevation of...






26. Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) are both elevated in this disease






27. Analysis of erythrocytes for uroporphyrinogen I synthetase detects...






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






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






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






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






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






33. Pregnant women with symptoms of thirst - frequent urination - or unexplained weight loss should have this test performed?






34. A sweat chloride result of 55 mEq/L and a sweat sodium of 52 mEq/L were obtained ona patient who has a history of respiratory problems. The bestc interpretation of these results is...






35. A breakdown product of hemoglobin is...






36. 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...






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






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






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






40. 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






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






42. This method offers the greatest sensitivity for HBsAg testing






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






44. A chemiluminescent EIA...






45. A one MOLAL solution is equivalent to...






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






47. 4 mL of water is added to 1 mL of serum. This represents this serum dilutions






48. Most automated blood gas analyzers directly measure...






49. A reciprocal relationship exists between...






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