ITC IRMA TruPoint Blood Analysis System - Manual (Page 35)

2.5
present (Figure 2-3). Bubbles or calibrant should rarely be seen if proper
injection technique is being used.
The sample path was designed to be easily viewed. If bubbles or calibrant are
present in the sample path, slowly inject additional sample to push them out of
the sample path and into the waste area.
Note:
• Do not pull sample from the waste area back into the sample path. Doing
so may cause inaccurate results.
Bubbles or Calibrant in Sample Path Figure 2-3
A. B. C. D.
A. Cartridge before sample injection.
B. Sample path properly filled after sample injection; sample path is
completely filled with no bubbles or calibrant present.
C. Sample path improperly filled after sample injection; sample path
contains bubbles (round) and calibrant (irregular). Bubbles or
calibrant may appear anywhere in the sample path.
D. Sample path (H4) properly filled after sample injection; sample path
is completely filled with no bubbles or calibrant present. Note that it
is normal for the enzyme pad to remain visible after sample injection.
If bubbles or calibrant do not move when additional sample is injected, tap the
top of the plunger to dislodge them, then inject additional sample from the
same syringe to push them into the waste area. The entire contents of the
syringe may be injected if necessary, to either reach the minimum sample
volume injection requirement (200uL) or to displace bubbles or calibrant. Do
not inject more than 5 mL of blood into the cartridge.
If air bubbles or calibrant gel cannot be displaced from the sample path, press
cancel to stop the test, discard the single-use cartridge, and begin again with a
new cartridge.
enzyme pad
bubbles
calibrant