Table I.
Comparison between values in blood collected using a transilluminator (trans) and Buzzy® left 90–180 seconds1, and a transilluminator and tourniquet left 90 seconds6, with mean difference between paired results. Items in bold are statistically significantly different.
| Units | Trans | Buzzy® | % diff | Trans | Tourniquet | % diff | |
|---|---|---|---|---|---|---|---|
| RBC | 1012/L | 4.80±0.55 | 4.90±0.55 | 2.0 | 4.68 (0.45 | 4.81 (0.46) | 2.8 |
| Hb | g/L | 137.9±12.7 | 141.4±13.2 | 2.5 | 14.1 (1.4) | 14.6 (1.4) | 2.6 |
| Hct | % | 40.6±4.0 | 41.5±4.0 | 2.2 | 41.7 (4) | 42.9 (4) | 2.9 |
| MCV | fL | 84.4 (81.8–88.3) | 84.6 (81.9–88.1) | 0.2 | 88 (5) | 89 (5) | 1.1 |
| RDW | % | 12.7±0.5 | 12.7±0.6 | 0 | |||
| WBC | 109/L | 7.35±1.94 | 7.10±1.89 | −3.5 | 6.59 (1.87) | 6.9 (2.02) | 4.8 |
| Neu | 106/L | 4.27±1.57 | 4.15±1.49 | −2.9 | 3.72 (1.31) | 3.87 (1.4) | 4.2 |
| Lymp | 106/L | 2.41±0.80 | 2.32±0.80 | −3.9 | 2.23 (0.73) | 2.29 (0.75) | 2.6 |
| Mono | 106/L | 0.29±0.08 | 0.28±0.05 | −3.6 | 0.33 (0.11) | 0.34 (0.13) | 3.9 |
| Eos | 106/L | 0.16±008 | 0.16±0.07 | 0 | 0.30 (0.34) | 0.37 (0.36) | 24.1 |
| Baso | 106/L | 0.046±0.02 | 0.041±0.02 | −12.2 | 0.026 (0.02) | 0.021 (0.02) | 23.8 |
| Plt | 106/L | 274±66 | 272±66 | −0.7 | 200 (46) | 208(46) | 3.6 |
| MPV | fL | 9.12±0.81 | 9.09±0.71 | −0.3 |
RBC: red blood cell count; Hct: haematocrit; Hb: haemoglobin concentration, MCV: mean corpuscular volume; RDW: red blood cell distribution width; WBC: white blood cell count; Neu: neutrophil count; Lymp: lymphocyte count; Mono: monocyte count; Eos: eosinophil count; Baso: basophil count; Plt: platelet count; MPV: mean platelet volume.