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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. The following results were obtained in a creatinine clearance evaluation: Urine concentration 84 mg/dL Urine volume 1440 mL/24 hr Serum concentration 1.4 mg/dL Body surface area 1.60 m2 (average = 1.73 m2) The creatinine cle~trance in mL/min is...






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






3. Zinc protoporphyrin or free erythrocyte protoporphyrin measurements are useful to assess blood concentrations of...






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






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






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






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






8. This method employs a highly specific antibody to thyroxine






9. The unit of measure for a standard solution is...






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






11. A blood creatinine value of 5.0 mg/dL is most likely to be found with this blood value?






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






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






14. As part of a hyperlipidemia screening program - the following results were obtained on a 25 year old woman 6 hours after eating:Triglycerides = 260 mg/dLCholesterol = 120 mg/dL - This is the BEST interpretation of these results?






15. The measurement of light scattered by particles in the sample is the principle of...






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






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






18. The ability of a procedure to measure only the component(s) it claims to measure is called...






19. The formula for calculating the amount of moles of a chemical?






20. A chemiluminescent EIA...






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






22. This enzymes catalyzes the conversion of starch to glucose and maltose






23. A stool specimen that appears black and tarry should be tested for the presence of...






24. Scurvy is associated with deficiency of...






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






26. This disease is associated with the greatest elevation of lactate dehydrogenase isoenzyme 1?






27. The buffer pH most effective at allowing amphoteric proteins to migrate toward the cathode in an electrophoretic system would be...






28. In familial hypercholesterolemia - the hallmark finding is an elevation of...






29. The formula for coefficient of variation?






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






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






32. In the fasting state - the arterial and capillary blood glucose concentration varies from the venous glucose concentration by approximately how many mg/dL?






33. Pregnant women with symptoms of thirst - frequent urination - or unexplained weight loss should have this test performed?






34. About 90% of phenytoin is excreted in the urine as...






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






36. Malic dehydrogenase is added to the aspartate aminotransaminase (AST) reaction to catalyze the conversion of...






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






38. The following bilirubin results are obtained on a patient: Day 1: 4.3 mg/dL Day 4: 2.2 mg/dL Day 2: 4.6 mg/dL Day 5: 4.4 mg/dL Day 3: 4.5 mg/dL Day 6: 4.5 mg/dL - Given that the controls were within range each day - what is a probable explanation for






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






40. Turbidity in serum suggests elevation of...






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






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






43. 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?






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






45. 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






46. 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






47. 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






48. Amino acid associated with a sulfhydryl group






49. 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?






50. Most drugs and intracellular metabolites measured by radioimmunoassay have molecular weights between 200 and 1000 and can be made immunogenic by...