6.3 clinical restrictions
A. As the measure is taken on the basis of arteriole pulse, substantial pulsating blood flow of
subject is required. For a subject with weak pulse due to shock, low ambient/body tempera-
ture, major bleeding, or use of vascular contracting drug, the spo
decrease. in this case, the measure will be more sensitive to interference.
B. For those with a substantial amount of staining dilution drug (such as methylene blue,
indigo green and acid indigo blue), or carbon monoxide hemoglobin (COHb), or methionine
(Me+Hb) or thiosalicylic hemoglobin, and some with icterus problem, the SpO
tion by this device may be inaccurate.
C. The drugs like dopamine, procaine, prilocaine, lidocaine and butacaine may also be a major
factor resulted in serious error of spo
D. as the spo
2
anoxia, and some patients with serious anemia may also report good spo
7 MAIntAIn, trAnsPOrtAtIOn AnD stOrAGe
7.1 cleaning and Disinfecting
use medical alcohol to disinfect the device. Dry or clean it with clean soft cloth.
value serves as a reference value for judgement of anemic anoxia and toxic
measure.
2
waveform (PLETH) will
2
determina-
2
measure value.
2
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