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Chemistry Certification
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Chemistry Certification
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25 Questions

1. Enzymes used in the diagnosis of acute pancreatitis?

2. A spectrophotometer is being considered for purchase by a small laboratory. This specification reflects the spectral purity of the instrument

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

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

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

6. Respiratory acidosis is described as a(n): ______ increase in CO2 decrease in pH

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

8. 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

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

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

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

12. Lasting serum phosphate concentration is controlled primarily by the...

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

14. The concentration of serum carotene is affected MOST by...

15. In electrophoresis of serum proteins - arifacts at the application point are most frequently caused by...

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

17. If a drug has a half-life of 7 hours - how many doses given at 7-hour intervals does it usually take to achieve a steady state or plateau level?

18. The anticonvulsant used to control tonic-clonic (grand mal) seizures is...

19. In the Jaffe reaction - creatine reacts with...

20. 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...

21. 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...

22. 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...

23. Four children are admitted with malaise - anorexia - and abdominal pain. Further evaluations reveal mild anemia - erythrocyte basophilic stippling - and profound pica habits. Poisoning by which heavy metal is most likely responsible?

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

25. In electrophoresis of proteins - when the sample is placed in an electric field connected to a buffer of pH 8.6 - all of the proteins...

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