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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. This method offers the greatest sensitivity for HBsAg testing






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






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






4. The most widely employed screening technique for drug abuse is...






5. High levels of which lipoprotein class are associated with decreased risk of accelerated atherosclerosis?






6. 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...






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






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






9. In the fasting state - the arterial and capillary blood glucose concentration varies from the venous glucose concentration by approximately how many mg/dL?






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






11. The electrophoretic pattern of a plasma sample compared with a serum sample shows a...






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






13. In the atomic absorption method for calcium - lanthanum is used...






14. An HPLC operator notes that the column pressure is too high - is rising too rapidly - and the recorder output is not producing normal peaks. The most probable cause of the problem is...






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






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






17. In a normal individual - injection of thyrotropin-releasing hormone (TRH) causes an increase in blood concentrations of this hormone






18. 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?






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






20. When myocardial infarction occurs - the first enzyme to become elevated is...






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






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






23. A spectrophotometer is being considered for purchase by a small laboratory. This specification reflects the spectral purity of the instrument






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






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






26. Cerebrospinal fluid for glucose assay should be...






27. The fast hemoglobin fraction is...






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






29. The urea nitrogen concentration of a serum sample was measured as 15 mg/dL (atomic weights: carbon = 12 - oxygen = 16 - nitrogen = 14 - hydrogen = 1). The urea concentration of the same sample - in mg/dL - is...






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






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






32. 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...






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






34. A reciprocal relationship exists between...






35. About 90% of phenytoin is excreted in the urine as...






36. Regan isoenzyme has the same properties as alkaline phosphatase that originates in the...






37. This calcium procedure utilizes lanthanum chloride to emliminate iterfering substances






38. 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?






39. The osmolality of a urine or serum specimen is measured by a change in the...






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






41. Given the following values:100;120;150;140;130;What is the mean?






42. 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?






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






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






45. An increase in serum acetone is indicative of a defect in the metabolism of...






46. Which percentage of total serum calcium is nondiffusible protein bound?






47. 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...






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






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






50. Bromcresol purple at a pH of 5.2 is used in a colorimetric method to measure...