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






2. In competitive inhibition of an enzyme reaction the...






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






4. 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...






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






6. Fluctuation of the needle on a coulometric type titrator is most probably due to...






7. Enzymes used in the diagnosis of acute pancreatitis?






8. A 24-hour urine specimen (total volume = 1136 mL) is submitted to the laboratory for quantitative urine protein. Calculate the amount of protein excreted per day - if the total protein is 52 mg/dL.






9. A low concentrarion of serum phosphorus is commonly found in...






10. This steroid is an adrenal cortical hormone






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






12. Measurement of total T4 by competitive protein binding or displacement is based on the specific binding properties of...






13. Bile acid concentrations are useful to assess...






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






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






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






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






18. The most heat labile fraction of alkaline phosphatase is obtained from...






19. A patient has the following results: Patient Values : Reference Values: Serum iron 250 ug/dL 60-150 ug/dL TIBC 350 ug/dL 300-35O ug/dL The best conclusion is that this patient has...






20. This disease is associated with the greatest elevation of lactate dehydrogenase isoenzyme 1?






21. Cocaine is metabolized to...






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






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






24. Amino acid associated with a sulfhydryl group






25. 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






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






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






28. The most sensitive enzymatic indicator for liver damage from ethanol intake is...






29. Patients with Cushing's syndrome exhibit...






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






31. Blood received in the laboratory for blood gas analysis must meet these requirements






32. A sweat chloride result of 55 mEq/L and a sweat sodium of 52 mEq/L were obtained ona patient who has a history of respiratory problems. The bestc interpretation of these results is...






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






34. Rickets is associated with deficiency of...






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






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






37. 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)






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






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






40. The most important buffer pair in plasma is the...






41. This wavelengths is within the ultraviolet rang.






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






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






44. An acid cleaning solution for glassware consists of...






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






46. This diseases results from a familial absence of high-density lioprotein






47. Malic dehydrogenase is added to the aspartate aminotransaminase (AST) reaction to catalyze the conversion of...






48. Amniotic fluid submitted for a lecithin/sphingomyelin (US) ratio has been left in a brown container since the night before. You would expect...






49. In monitoring glomerular function - this test has the highest sensitivity






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