Clinical Chemistry & Blood Analysis
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Questions and Answers

What is the main function of erythrocytes?

  • To produce protein enzymes in blood plasma
  • To pick up oxygen from tissues and deliver it to the lungs (correct)
  • To transport carbon dioxide to the lungs
  • To aid in blood clotting

    • Which of the following is NOT a formed element of blood?

  • Platelets
  • White blood cells (WBCs)
  • Red blood cells (RBCs)
  • Plasma (correct)

    • What is another name for the field of clinical chemistry?

  • Chemical pathology (correct)
  • Biomedical engineering
  • Genetic counseling
  • Physical therapy

    • Which of the following is NOT a type of WBC?

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

    What are the two main components of blood?

    <p>Plasma and Formed elements</p> Signup and view all the answers

    Which blood component is responsible for aiding in blood clotting?

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

    What is the function of vascular spasm in blood?

    <p>To form platelet plugs</p> Signup and view all the answers

    Why is anticoagulant used when collecting plasma for blood analysis?

    <p>To prevent coagulation of the blood sample</p> Signup and view all the answers

    Which method of drawing blood is used for identification of respiratory and acid-base disorders?

    <p>Arterial sampling</p> Signup and view all the answers

    What is the purpose of centrifuging blood at 2200-2500rpm for 10 minutes?

    <p>To separate blood components according to different densities</p> Signup and view all the answers

    Why is potassium oxalate used in blood collection instead of heparin?

    <p>To preserve blood glucose levels</p> Signup and view all the answers

    Which type of sampling procedure is preferred for reducing pain during blood collection?

    <p>Fingerstick sampling</p> Signup and view all the answers

    What is the purpose of collecting blood after the patient has fasted?

    <p>To ensure accurate glucose and cholesterol analysis</p> Signup and view all the answers

    Why is it important to maintain appropriate sample temperatures during blood storage?

    <p>To avoid degradation or alteration of the sample</p> Signup and view all the answers

    What happens if blood is stored longer than 3 weeks?

    <p>It becomes less flexible and less effective at delivering oxygen-rich cells</p> Signup and view all the answers

    Why are samples always brought to room temperature before analyzing?

    <p>To ensure accurate analysis results</p> Signup and view all the answers

    What does adding mineral oil to the collecting tube achieve in carbon-di-oxide analysis preservation?

    <p>Covers the blood sample to prevent exposure to air</p> Signup and view all the answers

    Why is using a cork stopper recommended when mineral oil is added to the collecting tube?

    <p>To prevent spillage of the mineral oil</p> Signup and view all the answers

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