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






2. Major actions of angiotensin II include...






3. A patient has the following results: Patient Values : Reference Values: Serum iron 250 ug/dL 60-150 ug/dL TIBC 350 ug/dL 300-35O ug/dL The best conclusion is that this patient has...






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






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






6. Beriberi is associated with deficiency of...






7. 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...






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






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






10. A patient with type I insulin-dependent diabetes mellitus has the following results: Fasting blood glucose: 150 mg/dL (70-110 rng/dL) Hemoglobin A1c: 25% (6.0%-19.5%) Fructosamine: 3.0 mmol/L ( 2.0-5.3 mmol/L)






11. Blood samples were collected at the beginning of an exercise class and after 30 minutes of aerobic activity. This would be most consistent with the postexercise sample






12. In competitive inhibition of an enzyme reaction the...






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






14. A chemiluminescent EIA...






15. 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...






16. 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






17. 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?






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






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






20. Lithium therapy is widely used in the treatment of...






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






22. A 45-year-old woman complains of fatigue - heat intolerance - and hair loss. Serum thyroxine and 125I-T3 resin uptake are abnormally low. What test would confirm that this is a pituitary deficiency?






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






24. The normal concentration of proteins in cerebrospinal fluid - relative to serum protein - is...






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






26. A patient in her 33rd week of pregnancy is hospitalized with toxemia. Her doctor would like to deliver the baby early because the toxemia is becoming more severe. The baby's best chance of delivery without respiratory distress due to lung immaturity






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






28. In electrophoretic analysis - buffers...






29. Rickets is associated with deficiency of...






30. An acid cleaning solution for glassware consists of...






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






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






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






34. Most drugs and intracellular metabolites measured by radioimmunoassay have molecular weights between 200 and 1000 and can be made immunogenic by...






35. Which two conditions can "physiologically" elevate serum alkaline phosphatase?






36. Assay of transketolase activity in blood is used to detect deficiency of...






37. A 25-year-old man became nauseated and vomited 90 minutes after receiving a standard 75-g carbohydrate dose for an oral glucose tolerance test. The best course of action is...






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






39. A common cause of a falsely increased LD1 fraction of lactic dehydrogenase is...






40. 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...






41. A patient with hemolytic anemia will...






42. The principle of the occult blood test depends on the...






43. 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?






44. 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...






45. This serum protein migrates with the beta-globulins on cellulose acetate at pH 8.6...






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






47. Cocaine is metabolized to...






48. Fluctuation of the needle on a coulometric type titrator is most probably due to...






49. In the sweat test - the sweating stimulant is introduced to the skin by application of...






50. Upon development of a thin layer chromatogram for the drug analysis - all drug spots (including the standards) had migrated with the solvent front. The most probable cause for this would be...