Methemoglobin (SpMet®)

Elevated Methemoglobin

Elevated Methemoglobin

 
 
  • Methemoglobin is a form of hemoglobin that is less able to bind to oxygen1
  • Methemoglobinemia is a condition where there are elevated levels of methemoglobin in the blood, which impairs oxygen delivery to tissues2
  • The administration of many drugs commonly used in hospitals–such as lidocaine, benzocaine, dapsone, and nitrates–may result in acquired methemoglobinemia2

Measuring Methemoglobin with SpMet

Measuring Methemoglobin with SpMet

 
 
  • Masimo pulse CO-oximetry provides a method to noninvasively and continuously measure methemoglobin in the blood
  • Measurements are taken by placing a sensor on a patient, usually on the fingertip for adults
  • Accuracy range 1-15% with +/- 1% ARMS3
Masimo - SpMet - rainbow SET Technology Platform

rainbow SET™ Technology Platform

 

Masimo rainbow SET is a noninvasive monitoring platform featuring Masimo SET® Measure-through Motion and Low Perfusion™ pulse oximetry with the option to measure multiple additional parameters.

  • Oxygen Saturation (SpO2)
  • Pulse Rate (PR)
  • Perfusion Index (Pi)
  • Pleth Variability Index (PVi®)
  • Oxygen Content (SpOC™)
  • Total Hemoglobin (SpHb®)
  • Methemoglobin (SpMet)
  • Carboxyhemoglobin (SpCO®)
  • Acoustic Respiration Rate (RRa®)

References

  1. 1.

    Miller’s Anesthesia 8th Edition. 2015.

  2. 2.

    AshBernal RA et al. Medicine. 2004 83:265273.

  3. 3.

    ARMS accuracy is a statistical calculation of the difference between device measurements and reference measurements. Approximately two-thirds of the device measurements fell within +/- ARMS of the reference measurements in a controlled study.



RESOURCES

SpMet monitoring with Masimo devices is not intended to replace laboratory blood testing. Blood samples should be analyzed by laboratory instruments prior to clinical decision making.

Caution: Federal (USA) law restricts this device to sale by or on the order of a physician. See instructions for use for full prescribing information, including indications, contraindications, warnings, and precautions.

PLCO-000406/PLM-10254A-1216