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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 breakdown product of hemoglobin is...






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






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






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






5. TSH is produced by the...






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






7. 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...






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






9. A potassium level of 6.8 mEq/L is obtained. Before reporting the results - the first step the technologist should take is to...






10. A condition in which erythrocyte protoporphyrin is increased is...






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






12. The protein portion of an enzyme complex is called the...






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






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






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






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






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






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






19. The hemoglobin that is resistant to alkali (KOH) denaturation is...






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






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






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






23. 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...






24. A spectrophotometer is being considered for purchase by a small laboratory. This specification reflects the spectral purity of the instrument






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






26. 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...






27. The serum glucose concentration of a diabetic patient undergoing a 2-hour glucose tolerance test should return to the baseline (fasting level) after a minimum of...






28. What substance gives feces its normal color?






29. A patient with glomerulonephritis would present the following serum results...






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






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






32. 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






33. A carbonate salt used to control manic-depressive disorders is...






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






35. A fasting serum sample from an asymptomatic 43-year-old woman is examined visually chemically with the following results: Initial appearance of serum: Milky Appearance of serum after overnight refrigeration: Cream layer over turbid serum Triglyceri






36. 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...






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






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






39. Upon completion of a run of cholesterol tests - the technician recognizes that the controls are not within the two standard deviations confidence range. What is the appropriate course of action






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






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






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






43. 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...






44. An HPLC operator notes that the column pressure is too high - is rising too rapidly - and the recorder output is not producing normal peaks. The most probable cause of the problem is...






45. 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...






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






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






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






49. The chemical composition of HDL- cholesterol corresponds to...






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







Sorry!:) No result found.

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