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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. A patient had the following serum results: Na+ 140 mEq/L K+ 4.0 mEq/L Glucose 95 mg/dL BUN 10 mg/dL Which osmolality is consistent with these results?






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






3. Serum haptoglobin...






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






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






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






7. Amniotic fluid submitted for a lecithin/sphingomyelin (US) ratio has been left in a brown container since the night before. You would expect...






8. In the liver - bilirubin is converted to...






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






10. Alkaline phosphatase Slight increase - Aminotransferase Marked increase - Aspartate aminotransferase Marked increase - Alanine gamma-glutamyl transferase Slight increase






11. In an internal standard flame photometer - the internal standard is used to...






12. Scurvy is associated with deficiency of...






13. This hemoglobin has glucose-6-phosphate on the amino-terminal valine of the beta chain?






14. Serum and urine copper levels are assayed on a hospital patient with the following results: Patient Serum Cu: 58 ug/dL; Reference Value:70-140 ug/dL Patient Urine Cu: 83 ug/dL ; Reference Value: < 40 ug/dL This is most consistent with...

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






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






17. 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






18. The following five sodium control values (mEq/L) were obtained:140 - 135 - 138 - 140 - 142Calculate the coefficient of variation.






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






20. The TRH (thyrotropin-releasing hormone) stimulation test is useful in assessing...






21. Major actions of angiotensin II include...






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






23. This would be an example of a glucose-specific colorimetric method






24. The principle of the occult blood test depends on the...






25. The presence of this isoenzymes indicates acute myocardial damage






26. The enzyme that exists chiefly in skeletal muscle - heart - and brain; is grossly elevated in active muscular dystrophy; and rises early in myocardial infarction is...






27. Creatinine clearance is used to estimate the...






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






29. The following results were obtained in a creatinine clearance evaluation: Urine concentration 84 mg/dL Urine volume 1440 mL/24 hr Serum concentration 1.4 mg/dL Body surface area 1.60 m2 (average = 1.73 m2) The creatinine cle~trance in mL/min is...






30. 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...






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






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






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






34. This diseases results from a familial absence of high-density lioprotein






35. 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






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






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






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






39. Phenobarbital is a metabolite of...






40. A 9-month-old boy from Israel has gradually lost the ability to sit up and develops seizures. He has an increased amount of a phospholipid called GM2-ganglioside in his neurons - and he lacks the enzyme hexosaminidase A in his leukocytes. These findi






41. The following data were obtained from a cellulose acetate protein electrophoresis scan: Albumin area 75 units Gamma globulin area 30 units Total area 180 units Total protein 6.5 g/dL The gamma globulin content in g/dL is...






42. In familial hypercholesterolemia - the hallmark finding is an elevation of...






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






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






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






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






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






48. 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






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






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