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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. Following overnight fasting - hypoglycemia in adults is defined as a glucose of...






2. 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






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






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






5. This would be an example of a glucose-specific colorimetric method






6. 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...






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






8. Oligoclonal bands are present on electrophoresis of concentrated CSF and also on concurrently tested serum of the same patient. The proper interpretation is...






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






10. 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...






11. Testing for the diagnosis of lead poisoning should include...






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






13. This applies to cryoscopic osmometry






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






15. This lipid results would be expected to be falsely elevated on a serum specimen from a nonfasting patient






16. 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...






17. 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






18. In electrophoresis of proteins - when the sample is placed in an electric field connected to a buffer of pH 8.6 - all of the proteins...






19. 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...






20. 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...






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






22. 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






23. The selectivity of an ion-selective electrode is determined by the...






24. The definitive diagnosis of primary adrenal insufficiency requires demonstration of...






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






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






27. Estrogen and progesterone receptor assays are useful in assessing prognosis in...?






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






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






30. As part of a hyperlipidemia screening program - the following results were obtained on a 25 year old woman 6 hours after eating:Triglycerides = 260 mg/dLCholesterol = 120 mg/dL - This is the BEST interpretation of these results?






31. The most heat labile fraction of alkaline phosphatase is obtained from...






32. The formula for calculating the amount of moles of a chemical?






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






34. A fresh urine sample is received for "porphyrins" or "porphyria" without further information or specifications. Initial analysis should include...






35. A blood sample was received from the emergency room with a request for narcotic analysis. The request slip indicated that the patient (a known heroin addict) responded to naloxone administration. The serum was negative for morphine by EIA. What other






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






37. In the immunoinhibition phase of the CK-MB procedure...






38. The different water content of erythrocytes and plasma makes true glucose concentrations in whole blood a function of the...






39. 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?






40. Detection of carriers of hereditary coproporphyria should include analysis of...






41. This steroid is an adrenal cortical hormone






42. Serum and urine copper levels are assayed on a hospital patient with the following results: Patient Serum Cu: 58 ug/dL; Reference Value:70-140 ug/dL Patient Urine Cu: 83 ug/dL ; Reference Value: < 40 ug/dL This is most consistent with...

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43. The presence of this isoenzymes indicates acute myocardial damage






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






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






46. In automated methods utilizing a bichromatic analyzer - dual wavelengths are employed to...






47. 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?






48. 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






49. Most chemical methods for determining total protein utilize this reaction?






50. 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...