Test your basic knowledge |

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. Phenobarbital is a metabolite of...






2. This chemical determination may be of help in establishing the presence of seminal fluid






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






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






5. 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






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






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






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






9. Specimens for blood gas determination should be drawn into a syringe containing...






10. This applies to cryoscopic osmometry






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






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






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






14. The direction in which albumin migrates (ie - toward anode or cathode) during electrophoretic separation of serum proteins - at pH 8.6 - is determined by...






15. This wavelengths is within the ultraviolet rang.






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






17. At a pH of 8.6 the gamma globulins move toward the cathode - despite the fact that they are negatively charged. What is this phenomenon called?






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






19. The formation of estriol in a pregnant woman is dependent on...






20. A technician is asked by the supervisor to prepare a standard solution from the stock standard. What is the glassware of choice for this solution?






21. Isoenzyme assays are preformed to improve...






22. The reason carbon monoxide is so toxic is because it...






23. 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?






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






25. 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






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






27. A patient with malabsorption receives 25 g of d-xylose orally; during the subsequent 5-hour period - the urine excretion of d-xylose is less than 3 g. This would indicate...






28. A blood gas sample was sent to the lab on ice - and a bubble was present in the syringe. The blood had been exposed to room air for at least 30 minutes. The following change in blood gases occurred...






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






30. A common cause of respiratory alkalosis is...






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






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






33. This method offers the greatest sensitivity for HBsAg testing






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






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






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






37. 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






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






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






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






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






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






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






44. A patient is admitted with biliary cirrhosis. If a serum protein electrophoresis is preformed - these globulin fractions will be most elevated?






45. 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...






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






47. One means of checking a spectrophotometer wavelength calibration in the visible range is by using a...






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






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






50. This method employs a highly specific antibody to thyroxine