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






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






3. This steroid is an adrenal cortical hormone






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






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






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






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






8. The most specific enzyme test for acute pancreatitis is...






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






10. The greatest activities of serum AST and ALT are seen in...






11. Aminotransferase enzymes catalyze the...






12. 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...






13. Isoenzyme assays are preformed to improve...






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






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






16. A psychiatric patient was experiencing sever depression - but responded to treatment with amitriptyline with no apparent side effects. A blood sample was sent to the laboratory for therapeutic monitoring. Which drug level would be MOST reflective of






17. 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?






18. Nephelometers measure light...






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






20. The method of choice for diagnosis of a protracted attack of porphyria is...






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






22. 4 mL of water is added to 1 mL of serum. This represents this serum dilutions






23. Detection of carriers of hereditary coproporphyria should include analysis of...






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






25. If a drug has a half-life of 7 hours - how many doses given at 7-hour intervals does it usually take to achieve a steady state or plateau level?






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






27. Cocaine is metabolized to...






28. A patient in her 33rd week of pregnancy is hospitalized with toxemia. Her doctor would like to deliver the baby early because the toxemia is becoming more severe. The baby's best chance of delivery without respiratory distress due to lung immaturity






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






30. 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...






31. Thiis serum protein fraction is most likely to be elevated in patients with nephrotic syndrome?






32. Acidosis and alkalosis are best defined as fluctuations in blood pH and CO2 content due to changes in...






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






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






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






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






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






38. The most widely used support medium for electrophoretic separation of lipoproteins is...






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






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






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






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






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






44. Testing for the diagnosis of lead poisoning should include...






45. A test request slip indicates that an acute porphyric attack is suspected clinically. Analysis should include...






46. After a difficult venipuncture requiring prolonged application of the tourniquet - the serum K+ was found to be 6.8 mEq/L. The best course of action is to...






47. 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






48. At blood pH 7.40 what is the ratio between bicarbonate and carbonic acid?






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






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







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