vi
Heart rate/pulse rate measurement
Monitor a patient using a pacemaker closely while measuring the heart rate.
Do not diagnose arrhythmia other than bradycardia or tachycardia by using the pulse
rate displayed and detected by the instrument.
The instrument employs three types of heart rate/pulse rate
detection methods.
Heart rate by QRS detection from the ECG waveform (Only for models with ECG)
(The value is displayed in green.)
Pulse rate by arterial oxygen saturation (SpO
2
) measurement
(The value is displayed in blue.)
Pulse rate by blood pressure measurement
(The value is displayed in yellow.)
Transcutaneous arterial oxygen saturation measurement
Correct measurements may not be performed in the following cases:
• When pigment is introduced into the blood vessel
• When nails are coated with nail polish
• When physical movement is present
• When the sensor is firmly tightened.
• When carboxyhemoglobin and/or methemoglobin concentration cannot be ignored.
• During electrosurgery
• During CPR
• When measured on the body part where venous pulsations exist
• When the pulse wave is small
• When the patient has low perfusion
• When the sensor temperature is out of the range of 28°C to 42°C.
When not in use, disconnect the cable from the instrument. Noise may enter an unused
sensor, causing an erroneous display.
Always monitor the SpO
2
plethysmograph and pulse wave bar graph to check against
bad blood circulation.
Excessive light may cause inaccurate measurements. In such cases, cover the sensor
with an opaque material.
Use the specified SpO
2
sensor for accurate measurement.
If the sensor is wrapped too tightly or supplemental tape is applied, venous pulsations
may lead to inaccurate saturation measurements.
Warning
Caution
Warning
