

Methaemoglobin (SpMet®) is a breakthrough measurement that allows clinicians to noninvasively and immediately detect elevated levels of methaemoglobin in the blood—facilitating earlier diagnosis and treatment for patients with methaemoglobinemia, a dangerous but underdiagnosed and undertreated condition.
- > Methaemoglobinemia is an important clinical condition, more common than generally believed, and is linked to increased morbidity and mortality.1
- > Many procedures and drugs commonly used in clinical practice—including iNO therapy in neonates—have been documented as contributing to induced methaemoglobinemia.1
- > Methaemoglobinemia occurs across all care areas and patient populations yet is often unrecognised and misdiagnosed.1
"Acquired Methemoglobinemia is fairly common and causes morbidity and mortality in both the inpatient and outpatient settings. Acquired methemoglobinemia is often unrecognised and thus untreated."
Dr. Rachel Ash-Bernal
and other researchers at Johns Hopkins Hospital
Technology Platform
Masimo rainbow SET® is a noninvasive monitoring platform enabling the assessment of multiple blood constituents and physiologic parameters that previously required invasive or complicated procedures, in addition to providing Masimo SET® Measure-through Motion and Low Perfusion pulse oximetry.

- > Acoustic Respiration Rate (RRa™)
- > Carboxyhaemoglobin (SpCO®)
- > Methaemoglobin (SpMet®)
- > Oxygen Content (SpOC™)
- > Pleth Variability Index (PVI®)
- > Total Haemoglobin (SpHb®)
- > Oxygen Saturation (SpO2)
- > Pulse Rate (PR)
- > Perfusion Index (PI)
The upgradeable rainbow SET® platform lets you choose the rainbow® measurements that are right for you now and be confident that your investment in patient safety won’t become obsolete tomorrow.
PDF Resources
REFERENCES
- 1 Ash-Bernal R, Wise R, Wright SM. Acquired Methemoglobinemia. A Retrospective Series of 138 Cases at 2 Teaching Hospitals. Medicine. 2004; 83: 265-272.



