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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 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






2. The unit of measure for a standard solution is...






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






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






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






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






7. The T3 resin uptake test is a measure of...






8. 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)






9. The following laboratory results were obtained on arterial blood: Sodium 136 mEq/L pH 7.32 Potassium 4.4 mEq/L PCO2 79 mm Hg Chloride 92 mEq/L Bicarbonate 40 mEq/L These results are most compatible with...






10. 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...






11. 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?






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






13. A 45-year-old woman has a fasting serum glucose concentration of 95 mg/dL and a 2-hour postprandial glucose concentration of 105 mg/dL. The statement that best describes this patient's fasting serum glucose concentration is...






14. Certain enzymes are activated to metabolize drugs as a result of another drug action. This is referred to as...






15. 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...






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






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






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






19. 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...






20. The most widely employed screening technique for drug abuse is...






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






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






23. 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...






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






25. The first step in analyzing a 24-hour urine specimen for quantitative urine protein is...






26. The test for adrenal cortical hyperfunction that has the greatest diagnostic sensitivity is measurement of...






27. Scurvy is associated with deficiency of...






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






29. If the correlation coefficient (r) of two variables is zero...






30. Which blood gas electrode is composed of calomel and glass?






31. The main reason for suboptimal drug levels in therapeutic drug monitoring is...






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






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






34. The most specific enzyme test for acute pancreatitis is...






35. The measurement of light scattered by particles in the sample is the principle of...






36. A one MOLAL solution is equivalent to...






37. 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?






38. Given the following results: Alkaline phosphatase Marked increase Aminotransferase Slight increase Aspartate aminotransferase Slight increase Alanine gamma-glutamyl transferase Marked increase This is most consistent with...






39. 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?






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






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






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






43. The most common type of congenital adrenal hyperplasia associated with increased plasma concentrations of 17 a-hydroxyprogesterone and increased urinary excretion of pregnanetriol is...






44. Patients with Cushing's syndrome exhibit...






45. 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






46. This method offers the greatest sensitivity for HBsAg testing






47. The relative migration rate of proteins on cellulose acetate is based on...






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






49. The formula for coefficient of variation?






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






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