This document discusses distinguishing between blood clotting and agglutination by identifying key differences. Blood clotting is a necessary process involving activated platelets to control blood loss through hemostasis. In contrast, agglutination is an unwanted host defense reaction where antibodies recognize foreign antigens during a transfusion reaction. The document also provides a blood smear image and questions to test understanding of normal hematocrit values and identifying blood components and cells.

1. Apply what you have learned

2. 1. What is this an image of?
2. Identify the following: (a) Green cell (centre)
(b) Small white, irregular shaped clumps
(c) Any other cells you can identify

3. 3. What is a normal hematocrit value?
4. What blood components contribute to the white band between the plasma and the RBCs?

4. 4. Which of these blood smears is from a patient with leukemia?
A B
5. In which image can you see platelets?
6. How can you tell the RBCs and WBCs apart? (Provide two visual cues)

5. Distinguishing Blood Clotting from
Agglutination
7. Activated _________ are responsible for
blood clotting and hemostasis. This process is
necessary to control blood loss.
8. A ‘transfusion reaction’ or ‘agglutination’ is a
Host Defencereaction involving _________
that recognize specific foreign antigens.

6. Just for Fun, do you remember?
Indicate what these numbers and ratios refer to:
RBCs 660:1
Plasma/Platelets 13
Antibodies 10
RBCs 120
Plasma 98%