Table 2.
Laboratory investigations of ED patients intentionally using N2O.
| Lab Variables | Pure N2O Users n = 24 |
Concomitant Illicit Drug Users n = 16 |
p-Value |
|---|---|---|---|
| White cell count | 7 (5.7–8.2) | 10.6 (8.4–14.85) | 0.01 |
| Hemoglobin | 13.1 (11.4–14) | 14.3 (12.65–15.2) | 0.04 |
| MCV | 89.8 (86.3–94.6) | 91.55 (86.05–96.4) | 0.93 |
| RDW | 14.4 (13.8–16.8) | 14 (13.45–15.1) | 0.25 |
| Platelet | 269 (252–373) | 282 (201–351.5) | 0.53 |
| Blood glucose | 109 (100–119) | 108 (104–137) | 0.76 |
| Na | 140 (138–142) | 138.5 (136.5–140) | 0.21 |
| K | 3.7 (3.5–3.8) | 3.45 (3.25–4.1) | 0.76 |
| BUN | 24.4 (23.45–25.5) | 22.5 (19.5–24.1) | 0.36 |
| Cr | 0.77 (0.62–0.94) | 0.86 (0.73–1.01) | 0.13 |
| ALT | 33 (16–51) | 31 (19–87) | 0.82 |
| Vitamin B12 * | 270.4 (152–1772) | 491.3 (200.4–860) | 0.74 |
| Homocysteine * | 33.1 (11.4–57.9) | 58 (29.55–98.6) | 0.32 |
* Vitamin B12, n = 21; homocysteine, n = 14.