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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. The presence of this isoenzymes indicates acute myocardial damage






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






4. This diseases results from a familial absence of high-density lioprotein






5. This steroid is an adrenal cortical hormone






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






7. Serum levels that define hypoglycemia in preterm or low birth weight infants are...






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






9. A patient with malabsorption receives 25 g of d-xylose orally; during the subsequent 5-hour period - the urine excretion of d-xylose is less than 3 g. This would indicate...






10. A patient with hemolytic anemia will...






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






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






13. The anion gap is useful for quality control of laboratory results for...






14. The fast hemoglobin fraction is...






15. At blood pH 7.40 what is the ratio between bicarbonate and carbonic acid?






16. A sweat chloride result of 55 mEq/L and a sweat sodium of 52 mEq/L were obtained ona patient who has a history of respiratory problems. The bestc interpretation of these results is...






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






18. 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...






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






20. This method offers the greatest sensitivity for HBsAg testing






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






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






23. 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...






24. The most widely used support medium for electrophoretic separation of lipoproteins is...






25. A person suspected of having metabolic alkalosis would have these laboratory findings






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






27. Rickets is associated with deficiency of...






28. Turbidity in serum suggests elevation of...






29. A patient had the following serum results: Na+ 140 mEq/L K+ 4.0 mEq/L Glucose 95 mg/dL BUN 10 mg/dL Which osmolality is consistent with these results?






30. A course of instruction is being planned to teach laboratory employees to correct simple malfunctions in selected laboratory instruments. In writing the objectives for this course - this would be most appropriate?






31. A fasting serum sample from an asymptomatic 43-year-old woman is examined visually chemically with the following results: Initial appearance of serum: Milky Appearance of serum after overnight refrigeration: Cream layer over turbid serum Triglyceri






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






33. Enzymes used in the diagnosis of acute pancreatitis?






34. Coulometry is used to measure...






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






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






37. 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






38. In electrophoretic analysis - buffers...






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






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






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






42. 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...






43. Alkaline phosphatase Slight increase - Aminotransferase Marked increase - Aspartate aminotransferase Marked increase - Alanine gamma-glutamyl transferase Slight increase






44. In competitive inhibition of an enzyme reaction the...






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






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






47. The formula for calculating absorbance given the percent transmittance (%T) of a solution






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






49. The enzyme present in almost all tissues that may be separated by electrophoresis into five components is...






50. The normal concentration of proteins in cerebrospinal fluid - relative to serum protein - is...