[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.
Masui. the Japanese Journal of Anesthesiology
|June 4, 2008
Summary
Pulse CO-Oximetry offers a simple, non-invasive method to measure carboxyhemoglobin (COHb) levels. While its correlation with blood samples is moderate, it shows promise for diagnosing carbon monoxide exposure.
Area of Science:
- Medical Diagnostics
- Respiratory Physiology
Context:
- Pulse CO-Oximetry is a rapidly adopted, non-invasive technique for measuring carboxyhemoglobin (COHb) in arterial blood.
- Traditional methods involve invasive blood sampling and analysis using a CO-Oximeter.
Purpose:
- To evaluate the efficacy of Pulse CO-Oximetry in measuring COHb levels.
- To compare COHb measurements obtained via Pulse CO-Oximetry with those from a standard CO-Oximeter.
Summary:
- Healthy smokers were monitored for COHb levels using both Pulse CO-Oximetry and blood samples after smoking three cigarettes.
- COHb levels increased post-smoking (6.9 +/- 2.7%) and decreased post-oxygen inhalation (2.5 +/- 2.2%) as measured by Pulse CO-Oximetry.
- The correlation coefficient between Pulse CO-Oximetry and blood sample COHb levels was 0.34.
Impact:
- Despite a moderate correlation (0.34), Pulse CO-Oximetry demonstrates potential for revolutionizing the diagnosis and treatment of carbon monoxide exposure due to its ease of use.
- The non-invasive nature of Pulse CO-Oximetry may improve patient comfort and facilitate quicker diagnostic assessments in clinical settings.
More Related Videos
Related Concept Videos
01:24Pulse Oximetry
Pulse oximetry, or SpO2, is a non-invasive method for continuously monitoring arterial oxygen saturation (SaO2). This procedure involves attaching a probe or sensor to the patient's fingertip, forehead, earlobe, or nose bridge. The sensor works by detecting changes in oxygen saturation levels through light signals generated by the oximeter and reflected by the pulsing blood under the probe.
Purpose
Average SpO2 values are greater than 95%. If the readings fall below 90%, it indicates that...
Purpose
Average SpO2 values are greater than 95%. If the readings fall below 90%, it indicates that...
01:19Guidelines For Measuring Vital Signs
Following these guidelines can help nurses accurately measure vital signs, assess changes in patient conditions, and provide timely treatment when necessary. Adhering closely to the guidelines ensures the accuracy and reliability of the results.
Before taking a patient's vital signs, a nurse would consider and assess the patient's comfort level and ensure appropriate equipment is available.
Before taking a patient's vital signs, a nurse would consider and assess the patient's comfort level and ensure appropriate equipment is available.
01:19Special considerations while measuring oxygen saturation
Assessing respiratory rate concurrently with pulse measurement is fundamental to patient care, providing valuable insights into the patient's respiratory function. The normal breathing rate for an adult usually falls within a normal range of 12 to 20 breaths per minute. Abnormal respiratory rates can signal underlying health conditions or the need for immediate intervention.
Ensuring accuracy in vital sign recordings while prioritizing patient comfort and minimizing anxiety is important.
Ensuring accuracy in vital sign recordings while prioritizing patient comfort and minimizing anxiety is important.
01:13Special considerations while measuring pulse
Assessing a patient's pulse is a fundamental skill in healthcare, but certain situations require special attention:
01:30Equipments Used To Measure Blood Pressure
Direct Method
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...
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...
01:30Pulse rhythm
Pulse rhythm refers to the pattern of pulsations within specific intervals, offering valuable insights into the regularity or irregularity of the heart's beats as observed through the pattern of pulsation within specific intervals. A regular pulse exhibits a consistent heart rate with uniform waveforms and pulsation force, variations of which can be classified as normal, weak, or bounding.
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac muscle...
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac muscle...