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. A stool specimen that appears black and tarry should be tested for the presence of...






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






3. Lasting serum phosphate concentration is controlled primarily by the...






4. A patient with glomerulonephritis would present the following serum results...






5. This applies to cryoscopic osmometry






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






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






8. 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...






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






10. The presence of this isoenzymes indicates acute myocardial damage






11. 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?






12. The hemoglobin that is resistant to alkali (KOH) denaturation is...






13. A breakdown product of hemoglobin is...






14. Gel filtration chromatography is used to separate...






15. The most consistent analytical error involved in the routine determination of HDLcholesterol is caused by...






16. The function of the major lipid components of the very low density lipoproteins (VLDL) is to transport...






17. In automated methods utilizing a bichromatic analyzer - dual wavelengths are employed to...






18. An automated CK assay gives a reading that is above the limits of linearity. A dilution of the serum sample is made by adding 1 mL of serum to 9 mL of water. The instrument now rew 350 U/L. The correct report on the undiluted serum should be...






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






20. 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...






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






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






23. 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






24. Malic dehydrogenase is added to the aspartate aminotransaminase (AST) reaction to catalyze the conversion of...






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






26. A technician is asked by the supervisor to prepare a standard solution from the stock standard. What is the glassware of choice for this solution?






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






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






29. 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






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






31. Serum haptoglobin...






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






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






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






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






36. 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...






37. A 25-year-old man became nauseated and vomited 90 minutes after receiving a standard 75-g carbohydrate dose for an oral glucose tolerance test. The best course of action is...






38. Aminotransferase enzymes catalyze the...






39. 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?






40. In thin layer chromatography - the Rf value for a compound is given by the...






41. 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...






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






43. 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.






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






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






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






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






48. This steroid is an adrenal cortical hormone






49. 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...






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