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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 Henderson-Hasselbalch equation






2. 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...






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






4. In the immunoinhibition phase of the CK-MB procedure...






5. This is a regulatory hormone.






6. 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






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






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






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






10. 4 mL of water is added to 1 mL of serum. This represents this serum dilutions






11. Sixty to seventy-five percent of the plasma cholesterol is transported by...






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






13. The first step in analyzing a 24-hour urine specimen for quantitative urine protein is...






14. The presence of this isoenzymes indicates acute myocardial damage






15. The reason carbon monoxide is so toxic is because it...






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






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






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






19. TSH is produced by the...






20. This chemical determination may be of help in establishing the presence of seminal fluid






21. Coulometry is used to measure...






22. A new method is being evaluated. A recovery experiment is performed with the following results: 0.9 mL serum sample + 0.1 mL H20 = 89 mEq/L 0.9 mL serum sample + 0.1 mL analyte std. @ 800 mEq/L = 161 mEq/L The percent recovery of the added analyt






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






24. 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...






25. 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...






26. 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...






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






28. The definitive diagnosis of primary adrenal insufficiency requires demonstration of...






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






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






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






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






33. 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...






34. If a drug has a half-life of 7 hours - how many doses given at 7-hour intervals does it usually take to achieve a steady state or plateau level?






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






36. Aminotransferase enzymes catalyze the...






37. Diagnostic specificity is defined as the percentage of individuals...






38. 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...






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






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






41. Ion selective electrodes are called selective rather than specific because they actually measure the...






42. A carbonate salt used to control manic-depressive disorders is...






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






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






45. 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...






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






47. The different water content of erythrocytes and plasma makes true glucose concentrations in whole blood a function of the...






48. Measurement of total T4 by competitive protein binding or displacement is based on the specific binding properties of...






49. Estrogen and progesterone receptor assays are useful in assessing prognosis in...?






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