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. Thiis serum protein fraction is most likely to be elevated in patients with nephrotic syndrome?






2. In using ion-exchange chromatographicbmethods - falsely increased levels of Hgb A1c will be demonstrated in presence of...






3. The function of the major lipid components of the very low density lipoproteins (VLDL) is to transport...






4. Measurement of the serum acid phosphatase is used to detect neoplastic disease of the...






5. A stool specimen that appears black and tarry should be tested for the presence of...






6. This steroid is an adrenal cortical hormone






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






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






9. A reciprocal relationship exists between...






10. These enzymes of heme biosynthesis are inhibited by lead






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






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






13. 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?






14. The formula for calculating serum osmolality that incorporates a correction for the water content of plasma is...






15. In the fasting state - the arterial and capillary blood glucose concentration varies from the venous glucose concentration by approximately how many mg/dL?






16. 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...






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 competitive inhibition of an enzyme reaction the...






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






20. On immunoassays using enzyme-labeled antibodies or antigens: ___________ can be carried out with a spectrophotometer






21. The greatest activities of serum AST and ALT are seen in...






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






23. 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...






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






25. 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...






26. This electrolyte is the chief plasma cation whose main function is maintaining osmotic pressure






27. How many grams of sodium chloride are needed to prepare 1 L of 0.9% normal saline?






28. 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






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






30. The following data were obtained on amniotic fluid from a gestation of 36 weeks' duration by menstrual dates: L/S = 2 Phosphatidyl glycerol not present This can be concluded from these data?






31. Serum concentrations of vitamin B12 are elevated in...






32. This elevates carboxyhemoglobin?






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






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






35. Total iron-binding capacity measures the serum iron transporting capacity of...






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






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






38. 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...






39. Serum haptoglobin...






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






41. A carbonate salt used to control manic-depressive disorders is...






42. A 9-month-old boy from Israel has gradually lost the ability to sit up and develops seizures. He has an increased amount of a phospholipid called GM2-ganglioside in his neurons - and he lacks the enzyme hexosaminidase A in his leukocytes. These findi






43. The formula for coefficient of variation?






44. 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?






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






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






47. A 2-year-old child with a decreased serum T4 is described as being somewhat dwarfed - stocky - overweight - and having coarse features. Of the following - the most informative additional laboratory test would be the serum...






48. Scurvy is associated with deficiency of...






49. The TRH (thyrotropin-releasing hormone) stimulation test is useful in assessing...






50. Cocaine is metabolized to...