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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 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?






2. 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.






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






4. A thick white turbid specimen was received in the laboratory labeled as pericardial fluid. A microscopic examination was performed - and the differential included 90% PMNs. The fluid is...






5. The general types of interference in atomic absorption spectrophotometry...






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






7. A patient with glomerulonephritis would present the following serum results...






8. A patient is admitted to the emergency room in a state of metabolic alkalosis.This would be consistent with this diagnosis?






9. Upon completion of a run of cholesterol tests - the technician recognizes that the controls are not within the two standard deviations confidence range. What is the appropriate course of action?






10. The formation of estriol in a pregnant woman is dependent on...






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






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






13. Phenobarbital is a metabolite of...






14. 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?






15. The function of the major lipid components of the very low density lipoproteins (VLDL) is to transport...






16. Following overnight fasting - hypoglycemia in adults is defined as a glucose of...






17. TSH is produced by the...






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






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






20. When separating serum proteins by cellulose acetate electrophoresis using veronal buffer at pH 8.6 - beta globulin migrates...






21. At blood pH 7.40 what is the ratio between bicarbonate and carbonic acid?






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






23. A serum potassium is 19.5 mg/100 mL. This value is equal to how many mEq/L (MW of K = 39)?






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






25. In monitoring glomerular function - this test has the highest sensitivity






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






27. A common cause of a falsely increased LD1 fraction of lactic dehydrogenase is...






28. The electrophoretic pattern of a plasma sample compared with a serum sample shows a...






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






30. 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...






31. Lithium therapy is widely used in the treatment of...






32. 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...






33. This method offers the greatest sensitivity for HBsAg testing






34. 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...






35. Amino acid associated with a sulfhydryl group






36. On immunoassays using enzyme-labeled antibodies or antigens: ___________ can be carried out with a spectrophotometer






37. The definitive diagnosis of primary adrenal insufficiency requires demonstration of...






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






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






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






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






42. One international unit of enzyme activity is the amount of enzyme that - under specified reaction conditions of substrate concentration - pH - and temperature - causes utilization of substrate at the rate of...






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






44. A serum sample for acid phosphatase determination is best prepared for room temperature storage by...






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






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






48. This is a glycolytic enzyme that catalyzes the cleavage of fructose-1 - 6-diphosphate to glyceraldehyde-3-phosphate and dihydroxyacetone phosphate






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






50. This steroid is an adrenal cortical hormone