Which parameter does SpCO measure in a clinical assessment?

Which parameter does SpCO measure in a clinical assessment?

• A. Oxygen saturation
• B. Methemoglobin
• C. Carboxyhemoglobin
• D. Hematocrit

Answer: (C)

SpCO represents the fraction of hemoglobin that is bound to carbon monoxide, measured by multi-wavelength pulse CO-oximetry. It specifically reports carboxyhemoglobin as a percentage of total hemoglobin, which is what you’re assessing in CO exposure or poisoning scenarios. This differs from oxygen saturation (SpO2), which only reflects how much hemoglobin is carrying oxygen, not CO. It also isn’t a measure of methemoglobin or hematocrit. So the value you’re looking at with SpCO is the carboxyhemoglobin level, which helps identify CO exposure and guide treatment.

SpCO represents the fraction of hemoglobin that is bound to carbon monoxide, measured by multi-wavelength pulse CO-oximetry. It specifically reports carboxyhemoglobin as a percentage of total hemoglobin, which is what you’re assessing in CO exposure or poisoning scenarios. This differs from oxygen saturation (SpO2), which only reflects how much hemoglobin is carrying oxygen, not CO. It also isn’t a measure of methemoglobin or hematocrit. So the value you’re looking at with SpCO is the carboxyhemoglobin level, which helps identify CO exposure and guide treatment.