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






2. Unless blood gas measurements are made immediately after sampling - in vitro glycolysis of the blood causes a...






3. A blood gas sample was sent to the lab on ice - and a bubble was present in the syringe. The blood had been exposed to room air for at least 30 minutes. The following change in blood gases occurred...






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






5. A 21-year-old man with nausea - vomiting - and jaundice has the following laboratory findings: Total serum bilirubin level: 8.5 mg/dL (normal - 0-1.0) Conjugated serum bilirubin level: 6.1 mg/dL (normal - 0-0.5) Urine urobilinogen: Increased Fecal u






6. A cardiac glycoside that is used in the treatment of congenital heart failure and arrhythmias by increasing the force and velocity of myocardial contraction is...






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






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






9. 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?






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






11. The enzyme that exists chiefly in skeletal muscle - heart - and brain; is grossly elevated in active muscular dystrophy; and rises early in myocardial infarction is...






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






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






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






15. 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...






16. In the assay of lactate dehydrogenase - this product is actually measured






17. 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...






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






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






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






21. 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...






22. Kernicterus is an abnormal accumulation of bilirubin in...






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






24. A reciprocal relationship exists between...






25. This applies to cryoscopic osmometry






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






27. Characteristic of the Bence Jones protein that is used to distinguish it from other urinary proteins is its solubility...






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






29. This steroid is an adrenal cortical hormone






30. This lipid results would be expected to be falsely elevated on a serum specimen from a nonfasting patient






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






32. The biuret reaction for the analysis of serum protein depends on the number...






33. This elevates carboxyhemoglobin?






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






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






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






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






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






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






40. An electrode has a silver/silver chloride anode and a platinum wire cathode. It is suspended in KCl solution and separated from the blood to be analyzed by a selectively permeable membrane. Such an electrode is used to measure...






41. 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...






42. The TRH (thyrotropin-releasing hormone) stimulation test is useful in assessing...






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






44. Analysis of erythrocytes for uroporphyrinogen I synthetase detects...






45. A blood gas sample was sent to the lab on ice - and a bubble was present in the syringe. The blood had been exposed to room air for at least 30 minutes. The following change in blood gases occurred...






46. 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...






47. In amniotic fluid - the procedure used to detect Rh isosensitization is...






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






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






50. Technical problems encountered during the collection of an amniotic fluid specimen caused doubt as to whether the specimen was amniotic in origin. This procedure would establish that the fluid is amniotic in origin