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






2. 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






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






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






5. 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...






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






7. 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...






8. A true statement about high performance liquid chromatography (HPLC) is that it...






9. The biologically most active - naturally occuring androgen is...






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






11. 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






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






13. What specimen preparation is commonly used to perform the alkaline phosphatase isoenzyme determination?






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






15. 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...






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






17. About 90% of phenytoin is excreted in the urine as...






18. 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






19. Upon development of a thin layer chromatogram for the drug analysis - all drug spots (including the standards) had migrated with the solvent front. The most probable cause for this would be...






20. A condition in which erythrocyte protoporphyrin is increased is...






21. 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...






22. A patient with hemolytic anemia will...






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






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






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






26. Rickets is associated with deficiency of...






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






28. A patient with type I insulin-dependent diabetes mellitus has the following results: Fasting blood glucose: 150 mg/dL (70-110 rng/dL) Hemoglobin A1c: 25% (6.0%-19.5%) Fructosamine: 3.0 mmol/L ( 2.0-5.3 mmol/L)






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






30. Pregnant women with symptoms of thirst - frequent urination - or unexplained weight loss should have this test performed?






31. The method of choice for diagnosis of a protracted attack of porphyria is...






32. When taken by a euthyroid individual - oral contraceptives containing estrogens will have this effects on the thyroid function studies






33. The presence of this isoenzymes indicates acute myocardial damage






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






35. 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






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






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






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






39. A patient is admitted to the emergency room in a state of metabolic alkalosis.This would be consistent with this diagnosis?






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






41. A critically ill patient becomes comatose. The physician believes the coma is due to hepatic failure. The assay most helpful in this diagnosis is...






42. This 2-hour postprandial glucose values demonstrates unequivocal hyperglycemia diagnostic for diabetes mellitus






43. Bromcresol purple at a pH of 5.2 is used in a colorimetric method to measure...






44. The following five sodium control values (mEq/L) were obtained:140 - 135 - 138 - 140 - 142Calculate the coefficient of variation.






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






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






47. The serum glucose concentration of a diabetic patient undergoing a 2-hour glucose tolerance test should return to the baseline (fasting level) after a minimum of...






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






49. Maple syrup urine disease is characterized by an increase in this urinary amino acids






50. 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?