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. To ensure an accurate ammonia level result - the specimen should be...






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






3. This steroid is an adrenal cortical hormone






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






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






6. Coulometry is used to measure...






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






8. The relative migration rate of proteins on cellulose acetate is based on...






9. A breakdown product of hemoglobin is...






10. A reciprocal relationship exists between...






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






12. A 45-year-old woman complains of fatigue - heat intolerance - and hair loss. Serum thyroxine and 125I-T3 resin uptake are abnormally low. What test would confirm that this is a pituitary deficiency?






13. A 45-year-old woman complains of fatigue - heat intolerance - and hair loss. Serum thyroxine and 125I-T3 resin uptake are abnormally low. What test would confirm that this is a pituitary deficiency?






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






15. 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...






16. 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...






17. This applies to cryoscopic osmometry






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






19. 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...






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






21. In the Jaffe reaction - creatine reacts with...






22. In electrophoresis of proteins - when the sample is placed in an electric field connected to a buffer of pH 8.6 - all of the proteins...






23. Serum concentrations of vitamin B12 are elevated in...






24. Nephelometers measure light...






25. A 68-year-old man arrives in the emergency room with a glucose level of 722 mg/dL and serum acetone of 4+ undiluted. An arterial blood gas from this patient is likely to indicate...






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






27. Amniotic fluid submitted for a lecithin/sphingomyelin (US) ratio has been left in a brown container since the night before. You would expect...






28. A potassium level of 6.8 mEq/L is obtained. Before reporting the results - the first step the technologist should take is to...






29. Acidosis and alkalosis are best defined as fluctuations in blood pH and CO2 content due to changes in...






30. Lithium therapy is widely used in the treatment of...






31. In amniotic fluid - the procedure used to detect Rh isosensitization is...






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






33. The Porter-Silber method (phenylhydrazine in alcohol and sulfuric acid) involves which part of the steroid molecule?






34. This elevates carboxyhemoglobin?






35. 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?






36. An Rf value of 0.5 in thin-layer chromatography means...






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






38. The chemical composition of HDL- cholesterol corresponds to...






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






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






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






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






43. Detection of carriers of hereditary coproporphyria should include analysis of...






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. This electrolyte is the chief plasma cation whose main function is maintaining osmotic pressure






46. Upon development of a thin layer chromatogram for the drug analysis - all drug spots (including the standards) had migrated with the solvent front. The most probable cause for this would be...






47. 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






48. What substance gives feces its normal color?






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






50. This is a regulatory hormone.