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Deviation from the baseline concentration of PTH (pg/mL) expressed in % at different storage temperatures. h: hours; d: days; n.d.: not done.
| Time Interval | Storage Temperature | ||
|---|---|---|---|
| 20 °C | 4 °C | −20 °C | |
| T 0 | 11.05 | 11.05 | 11.05 |
| 6 h | 8.75 (−20.8%) | 9.45 (−14.5%) | n.d. |
| 24 h | 5.4 (−51.1%) | 8.7 (−21.3%) | n.d. |
| 7 d | n.d. | n.d. | 10.2 (−7.7%) |
| 30 d | n.d. | n.d. | 8.45 (−23.5%) |
