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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 condition in which erythrocyte protoporphyrin is increased is...






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






3. In the sweat test - the sweating stimulant is introduced to the skin by application of...






4. Serum from a patient with metastatic carcinoma of the prostate was separated from the clot and stored at room temperature. The following results were obtained: Patient Reference Range Calcium: 10.8 mg/dL 8.8-10.3 mg/dL LD:420 U/L 50-150 U/L Acid phos






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






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






7. This chemical determination may be of help in establishing the presence of seminal fluid






8. A patient is admitted to the emergency room in a state of metabolic alkalosis.This would be consistent with this diagnosis?






9. About 90% of phenytoin is excreted in the urine as...






10. 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...






11. A breakdown product of hemoglobin is...






12. Hydrogen ion concentration (pH) in blood is usually determined by means of these electrodes?






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






14. The formula for calculating serum osmolality that incorporates a correction for the water content of plasma is...






15. In electrophoretic analysis - buffers...






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






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






18. A thick white turbid specimen was received in the laboratory labeled as pericardial fluid. A microscopic examination was performed - and the differential included 90% PMNs. The fluid is...






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






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






21. The ability of a procedure to measure only the component(s) it claims to measure is called...






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






23. 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...






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






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






26. 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...






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






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






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






30. Bioavailability of a drug refers to the...






31. 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?






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






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






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






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






36. Gel filtration chromatography is used to separate...






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






38. A patient has signs and symptoms suggestive of acromegaly. The diagnosis would be confirmed if the patient had...






39. The major fraction of organic iodine in the circulation is in the form of...






40. Before unconjugated bilirubin can react with Ehrlich's diazo reagent - this must be added






41. This is a characteristic shared by lactate dehydrogenase - malate dehydrogenase - isocitrate dehydrogenase - and hydroxybutyrate dehydrogenase?






42. As part of a hyperlipidemia screening program - the following results were obtained on a 25 year old woman 6 hours after eating:Triglycerides = 260 mg/dLCholesterol = 120 mg/dL - This is the BEST interpretation of these results?






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






44. The methodology based on the amount of energy absorbed by a subtance as a function of its concentration and using a specific source of the same material as the substance analyzed is...






45. Most automated blood gas analyzers directly measure...






46. 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...






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






48. The formula for calculating the amount of moles of a chemical?






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






50. Lasting serum phosphate concentration is controlled primarily by the...