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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. 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?






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






3. 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...






4. 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?






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






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






7. The hemoglobin that is resistant to alkali (KOH) denaturation is...






8. Quantitation of NA+ and K+ by ion-selective electrode is more rapid than flame photometry because...






9. 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...






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






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






12. A patient in her 33rd week of pregnancy is hospitalized with toxemia. Her doctor would like to deliver the baby early because the toxemia is becoming more severe. The baby's best chance of delivery without respiratory distress due to lung immaturity






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






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






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






16. The expected blood gas results for a patient in chronic renal failure would match the pattern of...






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






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






19. This enzyme substrates for prostatic acid phosphatase determination results in the highest specificity






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






21. The formula for coefficient of variation?






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






23. The regulation of calcium and phosphorus metabolism is accomplished by which gland?






24. The anion gap is useful for quality control of laboratory results for...






25. 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?






26. In spectrophotometric determination - this is the formula for calculating the absorbance of a solution






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






28. Total iron-binding capacity measures the serum iron transporting capacity of...






29. 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...






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






31. 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






32. The fast hemoglobin fraction is...






33. The Porter-Silber method (phenylhydrazine in alcohol and sulfuric acid) involves which part of the steroid molecule?






34. The following data were obtained on amniotic fluid from a gestation of 36 weeks' duration by menstrual dates: L/S = 2 Phosphatidyl glycerol not present This can be concluded from these data?






35. 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...






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






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






38. 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






39. In a normal individual - injection of thyrotropin-releasing hormone (TRH) causes an increase in blood concentrations of this hormone






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






41. Cocaine is metabolized to...






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






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






44. Enzymes used in the diagnosis of acute pancreatitis?






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






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






47. Turbidity in serum suggests elevation of...






48. In the assay of lactate dehydrogenase - this product is actually measured






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






50. A carbonate salt used to control manic-depressive disorders is...