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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. Patients with Cushing's syndrome exhibit...






2. 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...






3. Which percentage of total serum calcium is nondiffusible protein bound?






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






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






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






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






8. The relative migration rate of proteins on cellulose acetate is based on...






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






10. In a normal individual - injection of thyrotropin-releasing hormone (TRH) causes an increase in blood concentrations of this hormone






11. Amino acid associated with a sulfhydryl group






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






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






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






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






16. The definitive diagnosis of primary adrenal insufficiency requires demonstration of...






17. In electrophoresis of proteins - when the sample is placed in an electric field connected to a buffer of pH 8.6 - all of the proteins...






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






19. A breakdown product of hemoglobin is...






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






21. Zinc protoporphyrin or free erythrocyte protoporphyrin measurements are useful to assess blood concentrations of...






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






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






24. 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






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






26. The anion gap is useful for quality control of laboratory results for...






27. A 68-year-old man arrives in the emergency room with a glucose level of 722 mg/dL and serum acetone of 4+ undiluted. An arterial blood gas from this patient is likely to indicate...






28. Alkaline phosphatase Slight increase - Aminotransferase Marked increase - Aspartate aminotransferase Marked increase - Alanine gamma-glutamyl transferase Slight increase






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






30. Cocaine is metabolized to...






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






32. 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...






33. The Henderson-Hasselbalch equation






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






35. One means of checking a spectrophotometer wavelength calibration in the visible range is by using a...






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






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






38. The following five sodium control values (mEq/L) were obtained:140 - 135 - 138 - 140 - 142Calculate the coefficient of variation.






39. A serum potassium is 19.5 mg/100 mL. This value is equal to how many mEq/L (MW of K = 39)?






40. Measurement of the serum acid phosphatase is used to detect neoplastic disease of the...






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






42. This condition does decrease activity of glucuronyl transferase result in increased unconjugated bilirubin and kernicterus in neonates






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






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






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






46. This steroid is an adrenal cortical hormone






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






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






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






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