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. Cerebrospinal fluid for glucose assay should be...






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






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






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






5. A patient with hemolytic anemia will...






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






7. The Henderson-Hasselbalch equation






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






9. 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...






10. This hemoglobin has glucose-6-phosphate on the amino-terminal valine of the beta chain?






11. The Porter-Silber method (phenylhydrazine in alcohol and sulfuric acid) involves which part of the steroid molecule?






12. A serum potassium is 19.5 mg/100 mL. This value is equal to how many mEq/L (MW of K = 39)?






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






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






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






16. Enzymes used in the diagnosis of acute pancreatitis?






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






18. Serum levels that define hypoglycemia in preterm or low birth weight infants are...






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






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






21. 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...


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






23. The identification of Bence Jones protein is best accomplished by...






24. This method offers the greatest sensitivity for HBsAg testing






25. 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






26. A breakdown product of hemoglobin is...






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






28. This enzymes catalyzes the conversion of starch to glucose and maltose






29. This steroid is an adrenal cortical hormone






30. 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?






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






32. 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...






33. In competitive inhibition of an enzyme reaction the...






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






35. 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...






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






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






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






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






40. A patient had the following serum results: Na+ 140 mEq/L K+ 4.0 mEq/L Glucose 95 mg/dL BUN 10 mg/dL Which osmolality is consistent with these results?






41. 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?






42. Serum haptoglobin...






43. The glucose level in normal peritoneal fluid should be...






44. The most important buffer pair in plasma is the...






45. The electrophoretic pattern of a plasma sample compared with a serum sample shows a...






46. Bile acid concentrations are useful to assess...






47. Unless blood gas measurements are made immediately after sampling - in vitro glycolysis of the blood causes a...






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






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






50. Ninety percent of the copper present in plasma is bound to...