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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 unit of measure for a standard solution is...






2. 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?






3. High levels of which lipoprotein class are associated with decreased risk of accelerated atherosclerosis?






4. Serum anion gap is increased in patients with...






5. The primary function of serum albumin in the peripheral blood is to...






6. 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...






7. This serum constituent is unstable if a blood specimen is left standing at room temperature for 8 hours before processing






8. An electrode has a silver/silver chloride anode and a platinum wire cathode. It is suspended in KCl solution and separated from the blood to be analyzed by a selectively permeable membrane. Such an electrode is used to measure...






9. In amniotic fluid - the procedure used to detect Rh isosensitization is...






10. The osmolality of a urine or serum specimen is measured by a change in the...






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






12. Beriberi is associated with deficiency of...






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






14. In performing a spinal fluid protein determination - the specimen is diluted 1 part spinal fluid to 3 parts saline to obtain a result low enough to measure. To calculate the protein concentration the result must be...






15. 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?






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






17. This enzyme substrates for prostatic acid phosphatase determination results in the highest specificity






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






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






20. A breakdown product of hemoglobin is...






21. When myocardial infarction occurs - the first enzyme to become elevated is...






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






23. When separating serum proteins by cellulose acetate electrophoresis using veronal buffer at pH 8.6 - beta globulin migrates...






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






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






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






27. 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...






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






29. A person suspected of having metabolic alkalosis would have these laboratory findings






30. 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...






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






32. Calcium concentration in the serum is regulated by...






33. Blood was collected in a serum separator tube from a patient who had been fasting since midnight. The time of collection was 7:00 AM. The laboratory test that should be re-collected is...






34. The regulation of calcium and phosphorus metabolism is accomplished by which gland?






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






36. 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?






37. The formula for coefficient of variation?






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






39. 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






40. 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...






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






42. Gel filtration chromatography is used to separate...






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






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






45. These enzymes of heme biosynthesis are inhibited by lead






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






47. In using ion-exchange chromatographicbmethods - falsely increased levels of Hgb A1c will be demonstrated in presence of...






48. 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?






49. 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...






50. Lasting serum phosphate concentration is controlled primarily by the...







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