Table 2 Means and standard deviations of extracellular potassium, haemoglobin and lactate dehydrogenase concentrations in RC units warmed with latent heat (n = 28) or the dry heat blood warmer (n = 6) between day 7 & 25 of storage, with initial haemoglobin concentration between 70 & 700 mg/dL
From: Can latent heat safely warm blood? – in vitro testing of a portable prototype blood warmer
Sample from inlet line (before warming) | Sample from outlet line (midway through RC unit) | Sample from outlet line (at RC unit end) | |||||
|---|---|---|---|---|---|---|---|
Latent heat | Dry heat | Latent heat | Dry heat | Latent heat | Dry heat | ||
Potassium (mmol/L) | Mean | 29 | 30 | 29 | 30 | 30 | 32 |
Standard deviation | 7.2 | 10 | 6.6 | 10 | 7.4 | 10 | |
Haemoglobin (mg/dL) | Mean | 267 | 328 | 275 | 367 | 349 | 398 |
Standard deviation | 139 | 231 | 140 | 251 | 183 | 264 | |
Lactate Dehydrogenase (units/L) | Mean | 240 | 302 | 244 | 282 | 262 | 296 |
Standard deviation | 120 | 148 | 124 | 109 | 127 | 119 | |