Storage temperature | Baseline G6PD enzyme activity (%) that results in a sample testing severely deficient (< 10% activity) at the designated storage temperature and duration | Decay in enzyme activity | |||
---|---|---|---|---|---|
 | Day 1 | Day 5 | Day 10 | Day 14 |  |
4°C | 10% | 10% | 15% | 15% | ~ 5% by Day 10 |
25°C | 10% | 15% | 25% | 25% | ~ 5% by Day 5 |
 |  |  |  |  | ~ 15% by Day 10 |
37°C | 10% | 15% | 25% | 50% | ~ 5% by Day 5 |
 |  |  |  |  | ~ 15% by Day 10 |
 |  |  |  |  | ~ 40% by Day 14 |