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Finger Pulse Oximeter Frequently Asked Questions

FAQ about Finger Pulse Oximeters by ChoiceMMed

ChoiceMMed MD300Cx line of finger pulse oximeters shared many components and they differ mostly on the available features, exterior design and construction. Here we collect a list of issues which are common to most pulse oximeters from ChoiceMMed.

Frequency Asked Questions

Are the oximeters certified: The oximeters has been certified in many countries. Here is a partial list: USA FDA 510K, Japan PMDA, Canada CMDCAS, ISO 13485, ISO 9001.

Is the oximeter accurate: The oximeters have met all the accuracy standards in order to obtain the certification. In fact, the ±3% accuracy is limited by the technology and is common to most pulse oximeters regardless who makes them.

Are there any conditions that would cause the oximeters to report inaccurate results?: The performance depends on the pulsatile character of the artery. The measurement would not be considered reliable and accurate if the following conditions are present during measurement :

  • The patient is in cardiac arrest or shock
  • Venous pulsations
  • Cold hand
  • Have taken vascular activity medicine
  • Anemia
  • Carboxyhemoglobin
  • Methemoglobin
  • Methylene blue
  • Indocyanine green
  • Finger nail polish

For more details, see Pulse Oximeter Limitations

What do the error codes mean:

  • Err 1: program memory damaged.
  • Err 2: data memory damaged.
  • Err 3: sensor Red Emission Tube damaged.
  • Err 4: sensor Infra red-ray Emission Tube damaged.
  • Err 5: sensor Infra red-ray Receipt Tube damaged.
  • Err 6: exterior crystal oscillator damaged.
  • Err 7 & Err 8: sensor emission tube or receipt tube damaged.
  • Err 9: real time clock damaged.
  • Err 10: EEPROM chip damaged.

What can the oximeter do for me?: The SpO2 level and pulse rate tell a lot about your general health condition and help you to pace yourself while exercising. See Benefits of Pulse Oximeter and Many Uses of Oximeters for more details.

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