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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. 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?






2. 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...






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






4. While performing a serum lithium determination on a flame photometer with cesium as the internal standard - the technologist noticed that there was a flickering flame. The most probable cause of this problem is...






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






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






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






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






9. Amino acid associated with a sulfhydryl group






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






11. This method offers the greatest sensitivity for HBsAg testing






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






13. Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) are both elevated in this disease






14. This wavelengths is within the ultraviolet rang.






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






16. This enzyme substrates for prostatic acid phosphatase determination results in the highest specificity






17. A person suspected of having metabolic alkalosis would have these laboratory findings






18. Which blood gas electrode is composed of calomel and glass?






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






20. Blood specimens for digoxin assays should be obtained between 8 hours or more after drug administration because...






21. Beriberi is associated with deficiency of...






22. A condition in which erythrocyte protoporphyrin is increased is...






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






24. One international unit of enzyme activity is the amount of enzyme that - under specified reaction conditions of substrate concentration - pH - and temperature - causes utilization of substrate at the rate of...






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






26. The T3 resin uptake test is a measure of...






27. 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...






28. An acid cleaning solution for glassware consists of...






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






30. 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...






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






32. A serum potassium is 19.5 mg/100 mL. This value is equal to how many mEq/L (MW of K = 39)?






33. The measurement of light scattered by particles in the sample is the principle of...






34. Total iron-binding capacity measures the serum iron transporting capacity of...






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






36. The following five sodium control values (mEq/L) were obtained:140 - 135 - 138 - 140 - 142Calculate the coefficient of variation.






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






38. 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...






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






40. Blood received in the laboratory for blood gas analysis must meet these requirements






41. This is a glycolytic enzyme that catalyzes the cleavage of fructose-1 - 6-diphosphate to glyceraldehyde-3-phosphate and dihydroxyacetone phosphate






42. In spectrophotometric determination - this is the formula for calculating the absorbance of a solution






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






44. In an internal standard flame photometer - the internal standard is used to...






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






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






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






48. The protein portion of an enzyme complex is called the...






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






50. The glucose level in normal peritoneal fluid should be...