The document summarizes the blood centrifugation process in 3 steps: 1) Blood collection bags are placed in a centrifuge machine and spun to separate components. 2) This causes the red blood cells to deposit on the bottom while the plasma and platelets separate above. 3) The plasma is then extracted and further centrifuged to separate platelets, leaving nutrient-rich red blood cells in the original collection bag.

1. AE301:
COMMUNICATIVE
ENGLISH
BLOOD CENTRIFUGATION PROCESS
PREPARED BY: SHALENI KAVIRAJAN 08DEU13F2013
LECTURER: MDM SHAHIDA BT MD AZIZ

2. CONTENTS
oIntroduction
- Purpose
oMain body
- The process
oConclusion

3. Introduction

4. Main body – The Process
First, collecting
bags containing
blood is placed in
the centrifuge
machine.
After the spinning,
the red blood cells
will be deposited at
the bottom of the
collection bag.
The plasma, rich in
platelets is then
extracted into one of
the satellite bags.
White blood cells
suspended in the
plasma are
removed through
filtration.
The bag of platelets
- rich plasma is then
centrifuged too
extract the
platelets.
Finally, nutrients – rich
solution is added into
red blood cells in the
original collection bag.
These are called the
packed red blood cell.

5. The Process
Collecting bags containing
blood.
The collecting bags being
placed in the centrifuge
machine and is set for "soft
spin”.

6. The Process
The plasma remains on the surface
and the white blood cell and
platelets remain suspended in the
plasma above the red blood cell.
Bag of platelet
Nutrient-rich red blood cells. These
are called packed red blood cell.

7. Conclusion