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






2. The following data were obtained from a cellulose acetate protein electrophoresis scan: Albumin area 75 units Gamma globulin area 30 units Total area 180 units Total protein 6.5 g/dL The gamma globulin content in g/dL is...






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






4. 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...






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






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






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






8. These enzymes of heme biosynthesis are inhibited by lead






9. A pH of 7.0 represents a H+ concentration of...






10. A breakdown product of hemoglobin is...






11. 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...






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






13. This would be an example of a glucose-specific colorimetric method






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






15. In a double-beam photometer - the additional beam is used to...






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






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






18. Blood samples were collected at the beginning of an exercise class and after 30 minutes of aerobic activity. This would be most consistent with the postexercise sample






19. The extent to which measurements agree with or approach the true value of the quantity being measured is referred to as...






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






21. This steroid is an adrenal cortical hormone






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






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






24. A pH of 7.0 represents a H+ concentration of...






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






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






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






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






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






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






31. Major actions of angiotensin II include...






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






33. 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...






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






35. 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?






36. 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...






37. A blood creatinine value of 5.0 mg/dL is most likely to be found with this blood value?






38. In performing a spinal fluid protein determination - the specimen is diluted 1 part spinal fluid to 3 parts saline to obtain a result low enough to measure. To calculate the protein concentration the result must be...






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






40. The concentration of serum carotene is affected MOST by...






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






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






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






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






45. In electrophoretic analysis - buffers...






46. On immunoassays using enzyme-labeled antibodies or antigens: ___________ can be carried out with a spectrophotometer






47. Quantitation of NA+ and K+ by ion-selective electrode is more rapid than flame photometry because...






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






49. Respiratory acidosis is described as a(n): ______ increase in CO2 decrease in pH






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