Immunogenetics: Blood Group Determination and Serum Extraction
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Questions and Answers

What is the primary cause of lipemic serum?

  • Increase in lipids in the blood (correct)
  • Decrease in white blood cells
  • Increase in proteins in the blood
  • Decrease in red blood cells

What can be a result of improper handling during blood collection and processing?

  • Hemolyzed samples (correct)
  • Coagulated blood
  • Separated blood cell pellet
  • Lipemic serum

Why is it necessary to re-centrifuge the tube for another minute?

  • To speed up the clotting process
  • To ensure contamination from cellular blood elements
  • To separate plasma from serum
  • To ensure no contamination from cellular blood elements (correct)

What is the purpose of covering the tubes with parafilm?

<p>To prevent contamination (C)</p> Signup and view all the answers

How long can serum samples be stored in the refrigerator?

<p>2 to 3 days (A)</p> Signup and view all the answers

What is the result of intravascular hemolysis?

<p>Hemolyzed samples (C)</p> Signup and view all the answers

What is the purpose of centrifugation in serum extraction?

<p>To separate blood cells from serum (D)</p> Signup and view all the answers

What should be avoided when transferring serum into a new test tube?

<p>Disturbing the blood pellet (A)</p> Signup and view all the answers

What is the primary purpose of blood group determination?

<p>To determine the blood type (D)</p> Signup and view all the answers

What is the first step in plasma extraction?

<p>Sample collection (A)</p> Signup and view all the answers

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