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






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






3. Stray light can be detected in a spectrophotometer by utilizing a...






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






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






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






7. The methodology based on the amount of energy absorbed by a subtance as a function of its concentration and using a specific source of the same material as the substance analyzed is...






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






9. The primary function of serum albumin in the peripheral blood is to...






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






11. An electrophoretic separation of lactate dehydrogenase isoenzymes that demonstrates an elevation in LD-l and LD-2 in a "flipped" pattern is consistent with...






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






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






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






15. A thick white turbid specimen was received in the laboratory labeled as pericardial fluid. A microscopic examination was performed - and the differential included 90% PMNs. The fluid is...






16. Regan isoenzyme has the same properties as alkaline phosphatase that originates in the...






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






18. To ensure an accurate ammonia level result - the specimen should be...






19. The urea nitrogen concentration of a serum sample was measured as 15 mg/dL (atomic weights: carbon = 12 - oxygen = 16 - nitrogen = 14 - hydrogen = 1). The urea concentration of the same sample - in mg/dL - is...






20. Ion selective electrodes are called selective rather than specific because they actually measure the...






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






22. The extent to which measurements agree with or approach the true value of the quantity being measured is referred to as...






23. A new method is being evaluated. A recovery experiment is performed with the following results: 0.9 mL serum sample + 0.1 mL H20 = 89 mEq/L 0.9 mL serum sample + 0.1 mL analyte std. @ 800 mEq/L = 161 mEq/L The percent recovery of the added analyt






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






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






26. 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?






27. Magnesium carbonate is added in an iron binding capacity determination in order to...






28. The osmolal gap is defined as measured Osm/kg minus the calculated Osm/kg. The average osmolal gap is near...






29. 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?






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






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






32. An HPLC operator notes that the column pressure is too high - is rising too rapidly - and the recorder output is not producing normal peaks. The most probable cause of the problem is...






33. In monitoring glomerular function - this test has the highest sensitivity






34. In familial hypercholesterolemia - the hallmark finding is an elevation of...






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






36. Hydrogen ion concentration (pH) in blood is usually determined by means of these electrodes?






37. 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






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






39. In the liver - bilirubin is converted to...






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






41. Calcium concentration in the serum is regulated by...






42. A patient with hemolytic anemia will...






43. A low concentrarion of serum phosphorus is commonly found in...






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






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






46. 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...






47. Creatinine clearance is used to estimate the...






48. The most consistent analytical error involved in the routine determination of HDLcholesterol is caused by...






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






50. When separating serum proteins by cellulose acetate electrophoresis using veronal buffer at pH 8.6 - beta globulin migrates...