[Experience in employing pulse CO-Oximetry]
Tatsuya Nagano1, Ken Iseki, Takao Niki
1Department of Emergency & Critical Care Medicine, Yamagata University School of Medicine, Yamagata 990-9585.
Background:
In U.S.A., Pulse CO-Oximetry has emerged as a quick, simple, and non-invasive diagnostic modality to measure the concentration of COHb in arterial blood. To investigate its efficiency, we measured COHb levels by employing Pulse CO-Oximetry and by CO-Oximeter in arterial blood.
Methods:
Normal healthy volunteers with a habit of smoking, smoked three cigarettes consecutively for nine minutes.
Results:
Through this experiment, it was confirmed that the COHb level by Pulse CO-Oximetry rose after smoking (6.9 +/- 2.7%: mean +/- SD) and fell after oxygen inhalation (2.5 +/- 2.2%). The correlation coefficient of COHb levels between Pulse CO-Oximetry and blood sample was 0.34.
Conclusions:
The correlation coefficient between the COHb level by Pulse CO-Oximetry and that in the blood sample was not so high, but Pulse CO-Oximetry has the potential of changing the way victims of CO exposure are diagnosed and treated, because of its easiness.
More Related Videos
Related Concept Videos
Pulse Oximetry
Purpose
Average SpO2 values are greater than 95%. If the readings fall below 90%, it indicates that...
Guidelines For Measuring Vital Signs
Before taking a patient's vital signs, a nurse would consider and assess the patient's comfort level and ensure appropriate equipment is available.
Special considerations while measuring oxygen saturation
Ensuring accuracy in vital sign recordings while prioritizing patient comfort and minimizing anxiety is important.
Special considerations while measuring pulse
Equipments Used To Measure Blood Pressure
This invasive approach involves cannulating a peripheral artery. During each cardiac contraction, pressure generates mechanical motion within the catheter, transmitted through rigid, fluid-filled tubing to a transducer. This transducer converts mechanical motion into electrical signals displayed as waveforms on a monitor. An automatic flushing system prevents blood backflow. Due to the potential risk of unexpected arterial blood loss, this method is primarily used in intensive...
Pulse rhythm
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac muscle...


