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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 patient with type I insulin-dependent diabetes mellitus has the following results: Fasting blood glucose: 150 mg/dL (70-110 rng/dL) Hemoglobin A1c: 25% (6.0%-19.5%) Fructosamine: 3.0 mmol/L ( 2.0-5.3 mmol/L)






2. Gas chromatography with the nitrogen/phosphorus detector is the most commonly used technique for the analysis of...






3. Stray light can be detected in a spectrophotometer by utilizing a...






4. 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...






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






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






7. Most chemical methods for determining total protein utilize this reaction?






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






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






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






11. Following overnight fasting - hypoglycemia in adults is defined as a glucose of...






12. In familial hypercholesterolemia - the hallmark finding is an elevation of...






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






14. Amino acid associated with a sulfhydryl group






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






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






17. The selectivity of an ion-selective electrode is determined by the...






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






19. A patient had the following serum results: Na+ 140 mEq/L K+ 4.0 mEq/L Glucose 95 mg/dL BUN 10 mg/dL Which osmolality is consistent with these results?






20. Serum haptoglobin...






21. 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






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






23. In using ion-exchange chromatographicbmethods - falsely increased levels of Hgb A1c will be demonstrated in presence of...






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






25. The principle of the occult blood test depends on the...






26. Cocaine is metabolized to...






27. The general types of interference in atomic absorption spectrophotometry...






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






29. The biologically most active - naturally occuring androgen is...






30. What substance gives feces its normal color?






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






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






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






34. The most consistent analytical error involved in the routine determination of HDLcholesterol is caused by...






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






36. 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...






37. A potentiometric electrode that measures an analyte that passes through a selectively premeable membrane and rapidly enters into an equilibrium with an electrolyte solution is...






38. A patient is admitted with biliary cirrhosis. If a serum protein electrophoresis is preformed - these globulin fractions will be most elevated?






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






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






41. 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...






42. A new method is being evaluated. A recovery experiment is performed with the following results: 0.9 mL serum sample + 0.1 mL H20 = 89 mEq/L 0.9 mL serum sample + 0.1 mL analyte std. @ 800 mEq/L = 161 mEq/L The percent recovery of the added analyt






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






44. The following laboratory results were obtained on arterial blood: Sodium 136 mEq/L pH 7.32 Potassium 4.4 mEq/L PCO2 79 mm Hg Chloride 92 mEq/L Bicarbonate 40 mEq/L These results are most compatible with...






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






46. The function of the major lipid components of the very low density lipoproteins (VLDL) is to transport...






47. 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






48. Creatinine clearance is used to estimate the...






49. 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...






50. The direction in which albumin migrates (ie - toward anode or cathode) during electrophoretic separation of serum proteins - at pH 8.6 - is determined by...