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. 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. A chemiluminescent EIA...






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






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






5. This serum protein migrates with the beta-globulins on cellulose acetate at pH 8.6...






6. The urea nitrogen concentration of a serum sample was measured as 15 mg/dL (atomic weights: carbon = 12 - oxygen = 16 - nitrogen = 14 - hydrogen = 1). The urea concentration of the same sample - in mg/dL - is...






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






8. Phenobarbital is a metabolite of...






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






10. Turbidity in serum suggests elevation of...






11. The stimulant that causes localized sweating for the sweat test is...






12. 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...






13. 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...






14. 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






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






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






17. A test request slip indicates that an acute porphyric attack is suspected clinically. Analysis should include...






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






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






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






21. In using ion-exchange chromatographicbmethods - falsely increased levels of Hgb A1c will be demonstrated in presence of...






22. This lipid results would be expected to be falsely elevated on a serum specimen from a nonfasting patient






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






24. 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






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






26. This 2-hour postprandial glucose values demonstrates unequivocal hyperglycemia diagnostic for diabetes mellitus






27. The formula for coefficient of variation?






28. The extent to which measurements agree with or approach the true value of the quantity being measured is referred to as...






29. The enzyme that exists chiefly in skeletal muscle - heart - and brain; is grossly elevated in active muscular dystrophy; and rises early in myocardial infarction is...






30. An automated method for measuring chloride that generates silver ions in the reaction is...






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






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






33. This steroid is an adrenal cortical hormone






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






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






36. A patient with myeloproliferative disorder has the following values: Hgb = 13 g/dL Hct = 38% WBC = 30 x 10^3/uL Platelets = 1000 x 10^3/uL Serum Na+ = 140 mEq/L Serum K+ = 7 mEq/L The serum K+ should be confirmed by...






37. 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






38. 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






39. What specimen preparation is commonly used to perform the alkaline phosphatase isoenzyme determination?






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






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






42. 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...






43. A patient with type I insulin-dependent diabetes mellitus has the following results: Fasting blood glucose: 150 mg/dL (70-110 rng/dL) Hemoglobin A1c: 25% (6.0%-19.5%) Fructosamine: 3.0 mmol/L ( 2.0-5.3 mmol/L)






44. 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...






45. The fast hemoglobin fraction is...






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






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






48. A cardiac glycoside that is used in the treatment of congenital heart failure and arrhythmias by increasing the force and velocity of myocardial contraction is...






49. The most specific enzyme test for acute pancreatitis is...






50. Rickets is associated with deficiency of...