What is the product "Cryoprecipitated
AHF Pooled"?
Pooled Cryoprecipitate is usually made up of 10 units of thawed cryoprecipite (cryo). One
unit of cryo can increase
the level of fibrinogen in an average-size adult by 5mg/dL. The average
level of fibrinogen for a normal adult is >100mg/dL. Therefore, an
effective dose usually consisted of pooling 10 units of cryo
together. So, when cryoprecipitate is ordered it is usually pooled into
one bag which is then called "Cryoprecipitated
AHF Pooled".
Cryoprecipitated AHF Pooled can also be pooled
prior to labeling, freezing, and storage.
If pooled promptly after preparation using aseptic technique and
refrozen immediately. The label should stated the number of units pooled.
Procedure for pooling cryoprecipitate:
- Frozen cryo
is thawed in a protective plastic overwrap in a waterbath at 30-37C up to 15 minutes.
NOTE: Do
not refreeze after thawing.
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Transfer Bag
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- Label the satellite
transfer bag.
- Hemostat the tubing of
the transfer bag.
- Open one of the ports
on a unit of cryo to be pooled
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- Spike the opening of
the port with the transfer bag coupler (spike).
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- Release the hemostat
and allow the cryo to flow into the transfer
bag. Replace the hemostat and remove spike. Repeat
procedure until all units of cryo are in the
transfer bag.
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- Remove as much air as
possible form the transfer bag and heat seal the transfer bag tubing with
the heat sealer and cut the tubing.
- Weigh the content of the bag
and record on label.
Storage and Expiration of Pooled CRYO:
- Pooled
cryo is stored at room temperature 20-24oC
and transfused as soon as possible after thawing.
- Pooled
cryo expires 4 hours after
pooling.
Quality Control:
- Each
pool must have a Factor VIII content of at least 80 IU units times the
number of donor units in the pool.
- Each
pool must also have Fibrinogen content of at least 150mg times the number
of donor units in the pool.
Indications of usage:
- Hemophilia A
- Von Willebrand’s
disease
- Factor XIII deficiency
- A source of fibrinogen
for hypofibrinogenemia
- To make fibrin glue, a
substance composed of cryoprecipitate (fibrinogen) and topical thrombin