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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. 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.






2. The main reason for suboptimal drug levels in therapeutic drug monitoring is...






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






4. The identification of Bence Jones protein is best accomplished by...






5. A breakdown product of hemoglobin is...






6. This wavelengths is within the ultraviolet rang.






7. Assay of transketolase activity in blood is used to detect deficiency of...






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






9. A 9-month-old boy from Israel has gradually lost the ability to sit up and develops seizures. He has an increased amount of a phospholipid called GM2-ganglioside in his neurons - and he lacks the enzyme hexosaminidase A in his leukocytes. These findi






10. This serum constituent is unstable if a blood specimen is left standing at room temperature for 8 hours before processing






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






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






13. The following data were obtained on amniotic fluid from a gestation of 36 weeks' duration by menstrual dates: L/S = 2 Phosphatidyl glycerol not present This can be concluded from these data?






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






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






16. Fluctuation of the needle on a coulometric type titrator is most probably due to...






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






18. The osmolal gap is defined as measured Osm/kg minus the calculated Osm/kg. The average osmolal gap is near...






19. The expected blood gas results for a patient in chronic renal failure would match the pattern of...






20. In respiratory acidosis - a compensatory mechanism is the increase in...






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






22. Rickets is associated with deficiency of...






23. Most most likely to be ordered in addition to serum calcium to determine the cause of tetany?






24. 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...






25. 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...






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






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






28. After a difficult venipuncture requiring prolonged application of the tourniquet - the serum K+ was found to be 6.8 mEq/L. The best course of action is to...






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






30. Serum haptoglobin...






31. In the liver - bilirubin is converted to...






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






33. Magnesium carbonate is added in an iron binding capacity determination in order to...






34. What substance gives feces its normal color?






35. Nephelometers measure light...






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






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






38. 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...






39. 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?






40. 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...






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






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






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






44. The most important buffer pair in plasma is the...






45. One means of checking a spectrophotometer wavelength calibration in the visible range is by using a...






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






47. Calcium concentration in the serum is regulated by...






48. This hemoglobin has glucose-6-phosphate on the amino-terminal valine of the beta chain?






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






50. Currently the most common method for specific identification and quantitation of serum barbiturates is...