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. Which two conditions can "physiologically" elevate serum alkaline phosphatase?






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






3. The major fraction of organic iodine in the circulation is in the form of...






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






5. A 2-year-old child with a decreased serum T4 is described as being somewhat dwarfed - stocky - overweight - and having coarse features. Of the following - the most informative additional laboratory test would be the serum...






6. Most chemical methods for determining total protein utilize this reaction?






7. 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...






8. In developing the reference for a new EIA for CEA - the range for the normal population was broader than that published by the vendor. Controls are acceptable with a narrow coefficient of variation. This may be explained by...






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






10. Phenobarbital is a metabolite of...






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






12. The concentration of serum carotene is affected MOST by...






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






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






15. 4 mL of water is added to 1 mL of serum. This represents this serum dilutions






16. Kernicterus is an abnormal accumulation of bilirubin in...






17. 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...






18. A 45-year-old woman has a fasting serum glucose concentration of 95 mg/dL and a 2-hour postprandial glucose concentration of 105 mg/dL. The statement that best describes this patient's fasting serum glucose concentration is...






19. Blood was collected in a serum separator tube from a patient who had been fasting since midnight. The time of collection was 7:00 AM. The laboratory test that should be re-collected is...






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






21. The most sensitive enzymatic indicator for liver damage from ethanol intake is...






22. Isoenzyme assays are preformed to improve...






23. 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...






24. An electrophoretic separation of lactate dehydrogenase isoenzymes that demonstrates an elevation in LD-l and LD-2 in a "flipped" pattern is consistent with...






25. Serum anion gap is increased in patients with...






26. The anticonvulsant used to control tonic-clonic (grand mal) seizures is...






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






28. A fresh urine sample is received for "porphyrins" or "porphyria" without further information or specifications. Initial analysis should include...






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






30. The selectivity of an ion-selective electrode is determined by the...






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






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






33. 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...






34. Bioavailability of a drug refers to the...






35. Testing for the diagnosis of lead poisoning should include...






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






37. Technical problems encountered during the collection of an amniotic fluid specimen caused doubt as to whether the specimen was amniotic in origin. This procedure would establish that the fluid is amniotic in origin






38. This is a characteristic shared by lactate dehydrogenase - malate dehydrogenase - isocitrate dehydrogenase - and hydroxybutyrate dehydrogenase?






39. The direction in which albumin migrates (ie - toward anode or cathode) during electrophoretic separation of serum proteins - at pH 8.6 - is determined by...






40. This is a regulatory hormone.






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






42. 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






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






44. Maple syrup urine disease is characterized by an increase in this urinary amino acids






45. 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...






46. The serum glucose concentration of a diabetic patient undergoing a 2-hour glucose tolerance test should return to the baseline (fasting level) after a minimum of...






47. Ninety percent of the copper present in plasma is bound to...






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






49. Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) are both elevated in this disease






50. The presence of this isoenzymes indicates acute myocardial damage