Cautions And Notes - Spectros T-Stat 2.0 User Manual

G. Cautions and Notes
1. Capillary-weighted tissue oxygenation differs from arterial oxygenation as measured by
pulse oximetry. Tissue oxygenation (StO
(SaO
2
a pulse in order to obtain a measurement.
2. Measured values are affected by blood in direct contact with air. Care must be taken to
ensure the measured surface is devoid of free, extravasated hemoglobin, such as
introduced by trauma or surgery. Thin mucosa, such as the intestinal wall, can also absorb
oxygen directly through the mucosa, and read as more highly oxygenated, during open
surgical procedures.
3. Tissue oxygenation is affected by tissue compression, which locally reduces blood flow and
produces local ischemia. Care must be taken that local tissues are not made artificially
ischemic by direct pressure from the sensor.
4. T-Stat
Reuse sensors in human subjects.
5. Normal values, as read by the T-Stat
have not yet been established, as these readings are affected by organ pigments, and
surface bile (respectively).
Spectros Medical Devices Inc.
T-STAT 2.0 User Manual
%), as well as by blood flow and blood hemoglobin content, and does not require
sensors are designed for single human use only. Do Not Re-sterilize and Do Not
®
%) is influenced by arterial blood oxygenation
2
Tissue Oximeter, for the liver and the small intestine
®
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