Instruction manual

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