Test your basic knowledge |

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






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






3. Characteristic of the Bence Jones protein that is used to distinguish it from other urinary proteins is its solubility...






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






5. Regan isoenzyme has the same properties as alkaline phosphatase that originates in the...






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






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






8. This condition does decrease activity of glucuronyl transferase result in increased unconjugated bilirubin and kernicterus in neonates






9. The greatest activities of serum AST and ALT are seen in...






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






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






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






13. In a double-beam photometer - the additional beam is used to...






14. 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






15. When taken by a euthyroid individual - oral contraceptives containing estrogens will have this effects on the thyroid function studies






16. Measurement of the serum acid phosphatase is used to detect neoplastic disease of the...






17. The following blood gas results were obtained: pH : 7.18 PO2: 86 mm Hg PCO2: 60 mm Hg O2 saturation: 92% HCO3-: 21 mEq/L TCO2: 23 mEq/L Base excess: -8.0 mEq/L The patient's results are compatible with...






18. When the exact concentration of the solute of a solution is known and is used to evaluate the concentration of an unknown solution - the known solution is...






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






20. Estrogen and progesterone receptor assays are useful in assessing prognosis in...?






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






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






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






24. 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






25. 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.






26. In electrophoretic analysis - buffers...






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






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






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






30. 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...






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






32. The most common type of congenital adrenal hyperplasia associated with increased plasma concentrations of 17 a-hydroxyprogesterone and increased urinary excretion of pregnanetriol is...






33. The following laboratory results were obtained: Serum Calcium: Increased - Urine Calcium: Increased - Serum Phosphate: Decreased - Urine Phosphate: Increased Serum Alkaline Phosphatase: Normal or Increased These results are most compatible with...






34. Rickets is associated with deficiency of...






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






36. An HPLC operator notes that the column pressure is too high - is rising too rapidly - and the recorder output is not producing normal peaks. The most probable cause of the problem is...






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






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






39. 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?






40. The principle of the occult blood test depends on the...






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






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






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






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






45. The presence of this isoenzymes indicates acute myocardial damage






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






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






48. The buffering capacity of blood is maintained by a reversible exchange process between bicarbonate and...






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






50. 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...