Summary of laboratory values in 12 young patients with non-arteritic anterior ischaemic optic neuropathy
| Patient | BUN/ Creat | Haematocrit (%) | Serum folate (1.5–20.6 ng/ml) | RBC folate (95–570 ng/ml) | B6 (reference range in ng/ml) | B12 (211–911pg/ ml) | Homocysteine (reference range in μmol/l) |
|---|---|---|---|---|---|---|---|
| 1† | 9/1.0 | 44.9 | 2.8 | 169 | 14.6 (12.7–34.3) | 204 | 15.9 (7–22) |
| 2† | 18/1.0 | 48.6 | 7.7 | 459 | 15.6 (7–52) | 467 | 7.2 (7–22) |
| 3† | 9/0.7 | 37.5 | 5.7 | 147 | 8.2 (2–26) | 333 | 10.2 (7–22) |
| 4† | 10/0.8 | 44.2 | 7.0 | 191 | 6.6 (2–26) | 441 | 8.8 (7–22) |
| 5† | 15/1.3 | 45.2 | 7.5 | 279 | 32 (7–52) | 347 | 13.5 (7–22) |
| 6† | 41.3 | 10.1 | 403 | 5.2 (12.7–34.3) | 428 | 5.7 (7–22) | |
| 7† | 17/1.0 | 45.3 | 10.0 | 461 | 17.8 (7–52) | 616 | 6.9 (7–22) |
| 8† | 7.4 (7–52) | 521 | 9.9 (7–22) | ||||
| 9† | 604 | 512 | 9.3 (7–22) | ||||
| 10‡ | 39.9 | 13.0 (2.8–13.5) | |||||
| 11‡ | 14/1.1 | 46.5 | 3.6 | 249 | 10.5 (7–52) | 282 | 29.5 (2.8–13.5) |
| 12‡ | 43.0 | 16.1 (2.8–13.5) |
↵Indicates abnormal value. †Data from Corning Nichols Institute, San Juan Capistrano, CA, USA. ‡Data from Quest Diagnostics, San Juan Capistrano, CA, USA.