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






2. Serum haptoglobin...






3. Beriberi is associated with deficiency of...






4. 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...






5. This enzymes catalyzes the conversion of starch to glucose and maltose






6. A critically ill patient becomes comatose. The physician believes the coma is due to hepatic failure. The assay most helpful in this diagnosis is...






7. 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...






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






9. Upon development of a thin layer chromatogram for the drug analysis - all drug spots (including the standards) had migrated with the solvent front. The most probable cause for this would be...






10. A common cause of a falsely increased LD1 fraction of lactic dehydrogenase is...






11. An emphysema patient suffering from fluid accumulation in the alveolar spaves is likely to be in what metabolic state?






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






13. This steroid is an adrenal cortical hormone






14. A serum sample for acid phosphatase determination is best prepared for room temperature storage by...






15. A one MOLAL solution is equivalent to...






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






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






18. 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...






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






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






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






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






23. The regulation of calcium and phosphorus metabolism is accomplished by which gland?






24. 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...






25. Ninety percent of the copper present in plasma is bound to...






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






27. 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...






28. The following blood gas results were obtained: pH : 7.18 PO2: 86 mm Hg PCO2: 60 mm Hg O2 saturation: 92% HCO3-: 21 mEq/L TCO2: 23 mEq/L Base excess: -8.0 mEq/L The patient's results are compatible with...






29. The following results were obtained in a creatinine clearance evaluation: Urine concentration 84 mg/dL Urine volume 1440 mL/24 hr Serum concentration 1.4 mg/dL Body surface area 1.60 m2 (average = 1.73 m2) The creatinine cle~trance in mL/min is...






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






31. Oligoclonal bands are present on electrophoresis of concentrated CSF and also on concurrently tested serum of the same patient. The proper interpretation is...






32. 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...






33. Turbidity in serum suggests elevation of...






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






35. 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?






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






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






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. Blood was collected in a serum separator tube from a patient who had been fasting since midnight. The time of collection was 7:00 AM. The laboratory test that should be re-collected is...






40. A fresh urine sample is received for "porphyrins" or "porphyria" without further information or specifications. Initial analysis should include...






41. Rickets is associated with deficiency of...






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






43. An automated method for measuring chloride that generates silver ions in the reaction is...






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






45. Phenobarbital is a metabolite of...






46. In automated methods utilizing a bichromatic analyzer - dual wavelengths are employed to...






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






48. The nanometer is a measurement of...






49. Scurvy is associated with deficiency of...






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