Proficiency testing results for metanephrines
| Variable | Year | Trial | Specimen no. | No. | Median | Minimum | Maximum |
|---|---|---|---|---|---|---|---|
| Metanephrines, urine (ng/mL) | |||||||
| Metanephrine | 2022 | 1st | CMCM-22-01 | 8 | 546.3 | 489.8 | 615.9 |
| CMCM-22-02 | 325.2 | 215.3 | 353.1 | ||||
| CMCM-22-03 | 84.3 | 19.3 | 97.6 | ||||
| 2nd | CMCM-22-04 | 8 | 282.3 | 279.0 | 332.4 | ||
| CMCM-22-05 | 46.6 | 40.1 | 49.5 | ||||
| CMCM-22-06 | 562.5 | 520.0 | 638.2 | ||||
| 2023 | 1st | CMCM-23-01 | 8 | 53.9 | 43.2 | 54.5 | |
| CMCM-23-02 | 311.1 | 285.2 | 362.1 | ||||
| CMCM-23-03 | 562.3 | 484.1 | 683.0 | ||||
| 2nd | CMCM-23-04 | 8 | 541.6 | 443.4 | 699.3 | ||
| CMCM-23-05 | 47.7 | 31.9 | 50.8 | ||||
| CMCM-23-06 | 292.2 | 282.5 | 332.8 | ||||
| Normaetanephrine | 2022 | 1st | CMCM-22-01 | 8 | 2,561.0 | 1,645.6 | 3,010.0 |
| CMCM-22-02 | 877.0 | 570.9 | 978.0 | ||||
| CMCM-22-03 | 195.1 | 35.9 | 202.6 | ||||
| 2nd | CMCM-22-04 | 8 | 839.7 | 801.2 | 933.6 | ||
| CMCM-22-05 | 105.4 | 96.5 | 126.0 | ||||
| CMCM-22-06 | 1,438.7 | 1,325.9 | 1,512.3 | ||||
| 2023 | 1st | CMCM-23-01 | 8 | 144.0 | 115.6 | 157.0 | |
| CMCM-23-02 | 976.2 | 897.3 | 1,142.6 | ||||
| CMCM-23-03 | 1,782.2 | 1,512.7 | 2,050.0 | ||||
| 2nd | CMCM-23-04 | 8 | 1,623.4 | 1,392.8 | 1,692.5 | ||
| CMCM-23-05 | 166.1 | 101.8 | 175.2 | ||||
| CMCM-23-06 | 828.0 | 781.4 | 847.2 | ||||
| Metanephrines, plasma (nmol/L) | |||||||
| Metanephrine | 2022 | 1st | CMMP-22-01 | 10 | 8.77 | 7.06 | 10.99 |
| CMMP-22-02 | 5.09 | 2.65 | 7.62 | ||||
| CMMP-22-03 | 0.27 | 0.18 | 2.39 | ||||
| 2nd | CMMP-22-04 | 9 | 0.07 | 0.05 | 0.44 | ||
| CMMP-22-05 | 2.12 | 1.88 | 3.08 | ||||
| CMMP-22-06 | 1.09 | 0.97 | 1.40 | ||||
| 2023 | 1st | CMMP-23-01 | 11 | 2.13 | 1.90 | 462.37 | |
| CMMP-23-02 | 0.62 | 0.54 | 120.94 | ||||
| CMMP-23-03 | 0.08 | 0.04 | 18.27 | ||||
| 2nd | CMMP-23-04 | 12 | 0.06 | 0.00 | 0.32 | ||
| CMMP-23-05 | 0.63 | 0.58 | 1.77 | ||||
| CMMP-23-06 | 1.39 | 1.30 | 3.14 | ||||
| Normaetanephrine | 2022 | 1st | CMMP-22-01 | 10 | 8.77 | 7.06 | 10.99 |
| CMMP-22-02 | 5.09 | 2.65 | 7.62 | ||||
| CMMP-22-03 | 0.27 | 0.18 | 2.39 | ||||
| 2nd | CMMP-22-04 | 9 | 0.19 | 0.17 | 1.09 | ||
| CMMP-22-05 | 11.20 | 9.95 | 13.00 | ||||
| CMMP-22-06 | 5.98 | 5.70 | 7.19 | ||||
| 2023 | 1st | CMMP-23-01 | 11 | 4.74 | 3.55 | 858.82 | |
| CMMP-23-02 | 1.40 | 1.15 | 227.27 | ||||
| CMMP-23-03 | 0.17 | 0.06 | 14.96 | ||||
| 2nd | CMMP-23-04 | 12 | 0.13 | 0.11 | 0.64 | ||
| CMMP-23-05 | 1.48 | 1.09 | 2.94 | ||||
| CMMP-23-06 | 3.16 | 2.54 | 5.91 | ||||
| 3-Methoxytyramine | 2023 | 1st | CMMP-23-01 | 3 | 2.05 | 1.97 | 2.26 |
| CMMP-23-02 | 0.58 | 0.53 | 0.61 | ||||
| CMMP-23-03 | 0.06 | 0.01 | 0.09 | ||||
| 2nd | CMMP-23-04 | 3 | 0.06 | 0.03 | 0.06 | ||
| CMMP-23-05 | 0.63 | 0.60 | 0.63 | ||||
| CMMP-23-06 | 1.43 | 1.41 | 1.44 |