level 1 System 1000 - Slow Flow Rates

Trouble Shooting Slow Flow Rates
Many factors which are insignificant in low fluid administration are
restrictors of higher flow infusion. If you encounter flow restriction with
any Level 1 Fluid warmer, CHECK EACH OF THESE POSSIBLE
CAUSES.
OLD BLOOD
Stored blood begins to develop particulate within 5 to 7 days. This may
partially block fluid pathways, impeding flow.
FULLY SPIKED BAG |
Bag port membranes may only be split, not compleatiy pierced.
BAG PORT FILTER(if used)
40 micron to 80 micron filters used between the blood bag and the bag
spike of the Disposable set may restrict flow because:
1. Cold, viscous blood does not flow well through small pore filters.
2. As they are directly connected to the source of particulate with no
pre-filtering, they clog quickly.
3. They may trap air which can block filter media surface area.
CLAMPS PARTLY ENGAGED
Check to be sure all clamps are FULLY open.
TUBE SET
Leaving clamps engaged for extended periods of time when the
Disposable Set is not in use (such as pre-set-up) will cause the tubing to
take a SET in the clamped position.
TUBE KINK |
Be sure no tube kinks are present anywhere in the set, especially in the
Y-set when a pressure cuff is employed and the I.V. Pole is used in a
lowered position.
TRAPPED AIR IN FILTER
As noted in the Priming Instructions, remove the Filter from the holder
and tap against the Cabinet to dislodge air bubbles and allow them to
vent out. |
CLOGGED FILTER
If good quality blood is used, this filter should never cause flow
restriction. In the event of a clogged filter, this component may be
changed. See REPLACING FILTERS section of this manual. If frequent
clogging is encountered, discuss the QUALITY of the blood being used
with you Blood Bank.
EXTENSION LINES
Use only extension lines with a bore of .130" (3.3 mm) or larger,
equipped with large bore fittings, such as Level 1 Part No's. X-36 or
Y-30.
STOPCOCK or Y ADAPTER
Any fittings attached to the male luer-lock at the end of the Patient Line
should have large bores. If their bores are smaller than the male
luer-lock bore, they are restrictors.
NEEDLE or CATHETER
if possible, use a minimum 18 Gauge needle or
Smaller sizes will reduce flow.
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