Clinical Chemistry & Immunology: Common Equipment & Tests
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Questions and Answers

What is the primary principle of measurement in an osmometer?

  • Osmolality calculation
  • Boiling point elevation
  • Colligative properties determination
  • Freezing point depression (correct)

    • Which of the following is NOT a type of blood gas analysis?

  • Arterial blood gas analysis
  • Central blood gas analysis
  • Whole blood glucose analysis (correct)
  • Venous blood gas analysis

    • What is the unit of measurement for the molal freezing point depression constant (Kf)?

  • mM
  • °C/m (correct)
  • moles/L
  • mg/dL

    • What is the primary application of osmometers in clinical laboratory settings?

    <p>Urgent vital tests for disorders such as DM and analgesics overdose</p> Signup and view all the answers

    What is the term for the freezing point of the pure solvent?

    <p>Tf°</p> Signup and view all the answers

    Which of the following substances is NOT measured by an osmometer?

    <p>pH</p> Signup and view all the answers

    What is the primary function of the Osmometer in a clinical laboratory?

    <p>To measure blood and urine osmolality</p> Signup and view all the answers

    What is the maximum throughput of the Cobas Pure in terms of photometric and ISE tests per hour?

    <p>Up to 750 tests per hour</p> Signup and view all the answers

    What type of measurement methodology is used in the Cobas Pure for certain tests?

    <p>Spectrophotometric</p> Signup and view all the answers

    What is the primary function of the Blood Gas Analyser in a clinical laboratory?

    <p>To measure pH, PO2, PCO2, and HCO3 in blood</p> Signup and view all the answers

    What is the main advantage of the modular design of the Cobas Pure?

    <p>Integration of multiple analytical units</p> Signup and view all the answers

    What is the purpose of the c303 Clinical Chemistry Analytical Unit in the Cobas Pure?

    <p>To perform routine chemistry tests</p> Signup and view all the answers

    Which of the following conditions is characterized by low sodium levels but normal osmolality?

    <p>Pseudohyponatraemia</p> Signup and view all the answers

    What is the analytical measurement principle used to calculate the osmolal gap?

    <p>Indirect ISE</p> Signup and view all the answers

    Which of the following measurement techniques is used to measure the loss of intensity of light transmitted through a sample due to the scattering effect of insoluble particles?

    <p>Turbidimetry</p> Signup and view all the answers

    What is the principle behind the Colorimetric measurement technique?

    <p>Change in absorbance</p> Signup and view all the answers

    Which of the following is an example of a application of Enzyme Kinetics in measurement?

    <p>Liver enzymes</p> Signup and view all the answers

    What is the term used to describe the difference between the actual and calculated osmolality?

    <p>Osmolal gap</p> Signup and view all the answers

    What is the main difference between Turbidimetry and Nephelometry?

    <p>Turbidimetry measures particles at a single angle, while Nephelometry measures at multiple angles.</p> Signup and view all the answers

    What is the primary application of Turbidimetry and Nephelometry?

    <p>Measuring concentrations of large particles in serum proteins</p> Signup and view all the answers

    What is the principle of Electrochemiluminescence Immunoassay (ECLIA)?

    <p>It uses electroluminescence to measure the Sandwich complex</p> Signup and view all the answers

    What is the effect of Indirect ISE method in Pseudohyponatraemia?

    <p>It causes an exclusion effect</p> Signup and view all the answers

    Which of the following analyzers is commonly used for Turbidimetry?

    <p>Roche autoanalyzer</p> Signup and view all the answers

    What is the primary application of Ion Selective Electrode and Electrolyte analyser?

    <p>Measuring electrolyte levels in serum</p> Signup and view all the answers

    Which of the following biomarkers is used to diagnose neuroblastoma?

    <p>VMA</p> Signup and view all the answers

    What is the primary function of thyroid function tests?

    <p>To evaluate thyroid stimulating hormone levels</p> Signup and view all the answers

    Which of the following liver function tests is used to diagnose cholestasis?

    <p>Bilirubin</p> Signup and view all the answers

    What is the primary application of cardiac markers tests?

    <p>To diagnose cardiovascular disease</p> Signup and view all the answers

    Which of the following tumour markers is used to diagnose nasopharyngeal carcinoma?

    <p>Anti-IgM</p> Signup and view all the answers

    What is the primary function of renal function tests?

    <p>To monitor electrolyte levels</p> Signup and view all the answers

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