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






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






3. A serum sample was assayed for bilirubin at 10 AM and the result was 12 mg/dL. The same sample was retested at 3 PM. The result now is 8 mg/dL. The most likely explanation for this discrepancy is...






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






5. This is a regulatory hormone.






6. Given the following values:100;120;150;140;130;What is the mean?






7. Given the following results: Alkaline phosphatase Marked increase Aminotransferase Slight increase Aspartate aminotransferase Slight increase Alanine gamma-glutamyl transferase Marked increase This is most consistent with...






8. The stimulant that causes localized sweating for the sweat test is...






9. In the atomic absorption method for calcium - lanthanum is used...






10. 4 mL of water is added to 1 mL of serum. This represents this serum dilutions






11. A technician is asked by the supervisor to prepare a standard solution from the stock standard. What is the glassware of choice for this solution?






12. At a pH of 8.6 the gamma globulins move toward the cathode - despite the fact that they are negatively charged. What is this phenomenon called?






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






14. A 45-year-old woman has a fasting serum glucose concentration of 95 mg/dL and a 2-hour postprandial glucose concentration of 105 mg/dL. The statement that best describes this patient's fasting serum glucose concentration is...






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






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






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






18. A common cause of respiratory alkalosis is...






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






20. 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?






21. The method of choice for diagnosis of a protracted attack of porphyria is...






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






23. A cardiac glycoside that is used in the treatment of congenital heart failure and arrhythmias by increasing the force and velocity of myocardial contraction is...






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






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






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






27. The different water content of erythrocytes and plasma makes true glucose concentrations in whole blood a function of the...






28. Amino acid associated with a sulfhydryl group






29. The presence of this isoenzymes indicates acute myocardial damage






30. A condition in which erythrocyte protoporphyrin is increased is...






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






32. The serum glucose concentration of a diabetic patient undergoing a 2-hour glucose tolerance test should return to the baseline (fasting level) after a minimum of...






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






34. 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






35. In automated methods utilizing a bichromatic analyzer - dual wavelengths are employed to...






36. Blood received in the laboratory for blood gas analysis must meet these requirements






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






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






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






40. 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






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






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






43. Cocaine is metabolized to...






44. Kernicterus is an abnormal accumulation of bilirubin in...






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






46. 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...






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






48. 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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49. Total iron-binding capacity measures the serum iron transporting capacity of...






50. A 24-hour urine specimen (total volume = 1136 mL) is submitted to the laboratory for quantitative urine protein. Calculate the amount of protein excreted per day - if the total protein is 52 mg/dL.