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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. This method employs a highly specific antibody to thyroxine






2. Scurvy is associated with deficiency of...






3. In developing the reference for a new EIA for CEA - the range for the normal population was broader than that published by the vendor. Controls are acceptable with a narrow coefficient of variation. This may be explained by...






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






5. The buffer pH most effective at allowing amphoteric proteins to migrate toward the cathode in an electrophoretic system would be...






6. 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...






7. What substance gives feces its normal color?






8. The following data were obtained on amniotic fluid from a gestation of 36 weeks' duration by menstrual dates: L/S = 2 Phosphatidyl glycerol not present This can be concluded from these data?






9. This hemoglobin has glucose-6-phosphate on the amino-terminal valine of the beta chain?






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






11. The following results were obtained in a creatinine clearance evaluation: Urine concentration 84 mg/dL Urine volume 1440 mL/24 hr Serum concentration 1.4 mg/dL Body surface area 1.60 m2 (average = 1.73 m2) The creatinine cle~trance in mL/min is...






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






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






14. The following data were obtained from a cellulose acetate protein electrophoresis scan: Albumin area 75 units Gamma globulin area 30 units Total area 180 units Total protein 6.5 g/dL The gamma globulin content in g/dL is...






15. The formula for coefficient of variation?






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






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






18. The Porter-Silber method (phenylhydrazine in alcohol and sulfuric acid) involves which part of the steroid molecule?






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






20. An automated method for measuring chloride that generates silver ions in the reaction is...






21. The following bilirubin results are obtained on a patient: Day 1: 4.3 mg/dL Day 4: 2.2 mg/dL Day 2: 4.6 mg/dL Day 5: 4.4 mg/dL Day 3: 4.5 mg/dL Day 6: 4.5 mg/dL - Given that the controls were within range each day - what is a probable explanation for






22. 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






23. On immunoassays using enzyme-labeled antibodies or antigens: ___________ can be carried out with a spectrophotometer






24. Spectrophotometers isolate a narrow band pass by means of...






25. Pregnant women with symptoms of thirst - frequent urination - or unexplained weight loss should have this test performed?






26. 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?






27. Aminotransferase enzymes catalyze the...






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






29. Beriberi is associated with deficiency of...






30. Four children are admitted with malaise - anorexia - and abdominal pain. Further evaluations reveal mild anemia - erythrocyte basophilic stippling - and profound pica habits. Poisoning by which heavy metal is most likely responsible?






31. An automated CK assay gives a reading that is above the limits of linearity. A dilution of the serum sample is made by adding 1 mL of serum to 9 mL of water. The instrument now rew 350 U/L. The correct report on the undiluted serum should be...






32. An emphysema patient suffering from fluid accumulation in the alveolar spaves is likely to be in what metabolic state?






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






34. A breakdown product of hemoglobin is...






35. The first step to be taken when attempting to repair a piece of electronic equipment is...






36. Nephelometers measure light...






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






38. A 9-month-old boy from Israel has gradually lost the ability to sit up and develops seizures. He has an increased amount of a phospholipid called GM2-ganglioside in his neurons - and he lacks the enzyme hexosaminidase A in his leukocytes. These findi






39. An increase in serum acetone is indicative of a defect in the metabolism of...






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






41. The preparation of a patient for standard tolerance testing should include...






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






43. A 21-year-old man with nausea - vomiting - and jaundice has the following laboratory findings: Total serum bilirubin level: 8.5 mg/dL (normal - 0-1.0) Conjugated serum bilirubin level: 6.1 mg/dL (normal - 0-0.5) Urine urobilinogen: Increased Fecal u






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






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






46. 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






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






48. These enzymes of heme biosynthesis are inhibited by lead






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






50. The stimulant that causes localized sweating for the sweat test is...