RADIOMETER ABL800 FLEX, Руководство оператора

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12. Sampling ABL800 FLEX Operator's Manual
Preparation prior to arterial/venous sampling,
Continued
Arterial
sampling
guidelines The following are guidelines for sampling by arterial puncture:
Sampling method Guidelines
Puncture
•
Be careful not to mix venous blood with the arterial
sample. This can occur if a vein is punctured before
locating the artery. Arterial blood (due to the higher
pressure) will generally fill faster than venous blood,
and is lighter in color.
•
It is important to expel any air bubbles immediately
without prior agitation . An air bubble with a relative
volume of 0.5 % or more of the blood volume in the
syringe is a potential source of significant error
[
2, 3
]
.
The effect of such an air bubble increases with the
storage time and agitation of the sample.
•
Mix sample thoroughly with heparin immediately
after sampling by inverting the sampler several times
and then rolling the sample between your palms.
A-line
•
If aspirating the sample, do so slowly in order to
avoid hemolyzation of the sample
•
Expel any air bubbles immediately (see above)
•
Mix the sample thoroughly with heparin immediately
after sampling by inverting the sampler several times
and then rolling the sample between your palms.
WARNING – Risk of infection Disposal of used
sampling devices
Discard the waste as infectious waste
[
4
]
.
12-6