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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. In the Jaffe reaction - creatine reacts with...






2. Currently the most common method for specific identification and quantitation of serum barbiturates is...






3. The biologically most active - naturally occuring androgen is...






4. Kernicterus is an abnormal accumulation of bilirubin in...






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






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






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






8. Beriberi is associated with deficiency of...






9. The buffering capacity of blood is maintained by a reversible exchange process between bicarbonate and...






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






11. A serum sample for acid phosphatase determination is best prepared for room temperature storage by...






12. The enzyme present in almost all tissues that may be separated by electrophoresis into five components is...






13. The biuret reaction for the analysis of serum protein depends on the number...






14. These enzymes of heme biosynthesis are inhibited by lead






15. Aminotransferase enzymes catalyze the...






16. Coulometry is used to measure...






17. This is a characteristic shared by lactate dehydrogenase - malate dehydrogenase - isocitrate dehydrogenase - and hydroxybutyrate dehydrogenase?






18. A serum sample was assayed for bilirubin at 10 AM and the result was 12 mg/dL. The same sample was retested at 3 PM. The result now is 8 mg/dL. The most likely explanation for this discrepancy is...






19. 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?






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






21. 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






22. The enzyme that exists chiefly in skeletal muscle - heart - and brain; is grossly elevated in active muscular dystrophy; and rises early in myocardial infarction is...






23. In electrophoresis of serum proteins - arifacts at the application point are most frequently caused by...






24. Major actions of angiotensin II include...






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






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






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






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






29. A patient has signs and symptoms suggestive of acromegaly. The diagnosis would be confirmed if the patient had...






30. Sixty to seventy-five percent of the plasma cholesterol is transported by...






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






32. In a double-beam photometer - the additional beam is used to...






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






34. The most sensitive enzymatic indicator for liver damage from ethanol intake is...






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






36. Clinical assays for tumor markers are the most important for...






37. A reciprocal relationship exists between...






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






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






40. A blood creatinine value of 5.0 mg/dL is most likely to be found with this blood value?






41. 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?






42. 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?






43. This enzymes catalyzes the conversion of starch to glucose and maltose






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






45. 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






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






47. Serum from a patient with metastatic carcinoma of the prostate was separated from the clot and stored at room temperature. The following results were obtained: Patient Reference Range Calcium: 10.8 mg/dL 8.8-10.3 mg/dL LD:420 U/L 50-150 U/L Acid phos






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






49. The identification of Bence Jones protein is best accomplished by...






50. An Rf value of 0.5 in thin-layer chromatography means...