Figure 13
From: Can latent heat safely warm blood? – in vitro testing of a portable prototype blood warmer
Extracellular haemoglobin (Hb) in the subset of pre, mid & post warmed RC (tested between day 7 & 25 of storage, with initial haemoglobin concentration between 70 & 700 mg/dL) warmed with latent heat (n = 28) or the dry heat blood warmer (n = 6). LH pre = Latent heat prototype, sample extracted from inlet line (before warming). LH mid = Latent heat prototype, sample extracted from outlet line midway through RC unit (warmed). LH post = Latent heat prototype, sample extracted from outlet line at the end of the RC unit (warmed). DH pre = Dry heat blood warmer, sample extracted from inlet line (before warming). DH mid = Dry heat blood warmer, sample extracted from outlet line midway through RC unit (warmed). DH post = Dry heat blood warmer, sample extracted from outlet line at the end of the red RC (warmed).