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Figure 4 | Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine

Figure 4

From: Assessment of the breath alcohol concentration in emergency care patients with different level of consciousness

Figure 4

The bias between the BAC and the BrAC in relation to the pCO 2 . (a) The underestimation of the BrACmeas as compared to the BAC is decreased with increased level of measured pCO2, which is achieved with increased length of expiration. (b) No bias and a more even distribution around the x-axis indicate a decreased influence from measured pCO2 with the use of BrACest.

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