Preanalytic factors
| Description: | Collection, processing and storage factors that affects chemistry results |
| Category: | Laboratory Science |
| Created by: | Teresa_indigo on 2008-12-29 |
| Question | Answer |
| Squeezing site of capillary puncture | ↑K |
| Pumping fist during veipuncture | ↑ 1.K 2.Lactate 3.Ca 4.PO4 ↓ pH |
| Tournquet > 1min | ↑ 1.K 2.Total protein 3.Cholesterol 4.Fe |
| Hemolysis | ↑ 1.K 2.Mg 3.PO4 4.LD 5.AST 6.Fe 7.Total protein 8.Ammonia |
| Light exposure | ↓ 1.Bilirubin 2.Carotene |
| Delay in serum separation | ↑ 1.Ammonia 2.Lactate 3.K 4.Mg 5.LD ↓ Glucose |
| Storage at room t | ↑ 1.Lactate 2.Ammonia ↓ Glucose |
| Storage at 4C | ↓ LD |
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