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






2. The glucose level in normal peritoneal fluid should be...






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






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






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






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






7. Spectrophotometers isolate a narrow band pass by means of...






8. Beriberi is associated with deficiency of...






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






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






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 concentration of serum carotene is affected MOST by...






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






14. In competitive inhibition of an enzyme reaction the...






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






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






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






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






19. Gel filtration chromatography is used to separate...






20. 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






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






22. 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...






23. This method employs a highly specific antibody to thyroxine






24. This method offers the greatest sensitivity for HBsAg testing






25. The most heat labile fraction of alkaline phosphatase is obtained from...






26. This wavelengths is within the ultraviolet rang.






27. 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...






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






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






30. Which blood gas electrode is composed of calomel and glass?






31. Most most likely to be ordered in addition to serum calcium to determine the cause of tetany?






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






33. In respiratory acidosis - a compensatory mechanism is the increase in...






34. The primary function of serum albumin in the peripheral blood is to...






35. A psychiatric patient was experiencing sever depression - but responded to treatment with amitriptyline with no apparent side effects. A blood sample was sent to the laboratory for therapeutic monitoring. Which drug level would be MOST reflective of






36. The formula for calculating serum osmolality that incorporates a correction for the water content of plasma is...






37. Blood specimens for digoxin assays should be obtained between 8 hours or more after drug administration because...






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






39. Oligoclonal bands are present on electrophoresis of concentrated CSF and also on concurrently tested serum of the same patient. The proper interpretation is...






40. 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...






41. The main reason for suboptimal drug levels in therapeutic drug monitoring is...






42. Regan isoenzyme has the same properties as alkaline phosphatase that originates in the...






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






44. The formula for calculating the amount of moles of a chemical?






45. A course of instruction is being planned to teach laboratory employees to correct simple malfunctions in selected laboratory instruments. In writing the objectives for this course - this would be most appropriate?






46. How many grams of sodium chloride are needed to prepare 1 L of 0.9% normal saline?






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






48. A blood gas sample was sent to the lab on ice - and a bubble was present in the syringe. The blood had been exposed to room air for at least 30 minutes. The following change in blood gases occurred...






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






50. The methodology based on the amount of energy absorbed by a subtance as a function of its concentration and using a specific source of the same material as the substance analyzed is...