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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. In electrophoretic analysis - buffers...






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






3. Thiis serum protein fraction is most likely to be elevated in patients with nephrotic syndrome?






4. Rickets is associated with deficiency of...






5. The T3 resin uptake test is a measure of...






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






7. 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...






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






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






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






11. While performing a serum lithium determination on a flame photometer with cesium as the internal standard - the technologist noticed that there was a flickering flame. The most probable cause of this problem is...






12. 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






13. Nephelometers measure light...






14. An acid cleaning solution for glassware consists of...






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






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






17. 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...






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






19. Bile acid concentrations are useful to assess...






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






21. 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






22. An electrode has a silver/silver chloride anode and a platinum wire cathode. It is suspended in KCl solution and separated from the blood to be analyzed by a selectively permeable membrane. Such an electrode is used to measure...






23. The identification of Bence Jones protein is best accomplished by...






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






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






26. Serum from a patient with metastatic carcinoma of the prostate was separated from the clot and stored at room temperature. The following results were obtained: Patient Reference Range Calcium: 10.8 mg/dL 8.8-10.3 mg/dL LD:420 U/L 50-150 U/L Acid phos






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






28. Coulometry is used to measure...






29. 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...






30. A potentiometric electrode that measures an analyte that passes through a selectively premeable membrane and rapidly enters into an equilibrium with an electrolyte solution is...






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






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






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






34. Currently the most common method for specific identification and quantitation of serum barbiturates is...






35. 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...






36. 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...






37. Hydrogen ion concentration (pH) in blood is usually determined by means of these electrodes?






38. Gas chromatography with the nitrogen/phosphorus detector is the most commonly used technique for the analysis of...






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






40. This applies to cryoscopic osmometry






41. How many grams of sodium chloride are needed to prepare 1 L of 0.9% normal saline?






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






43. This wavelengths is within the ultraviolet rang.






44. The protein portion of an enzyme complex is called the...






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






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






47. This steroid is an adrenal cortical hormone






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






49. In respiratory acidosis - a compensatory mechanism is the increase in...






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