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| Primary Name |
Fletcher Factor Assay |
| Synonym |
Prekallikrein assay |
| Synonym |
-- |
| Contraction |
PK assay |
| Contraction |
-- |
| Contraction |
-- |
| UAB Procedure Number |
2500550 |
| CPT Code |
85292 |
| Specimen |
Collect one (1) blue-stopper tube (3.2% sodium citrate), filled to specified volume. Do not underfill or overfill. |
| Specimen Management |
Centrifuge blue-stopper tube within one (1) hour of collection, separate plasma and test or quick-freeze at -70°C. |
| Specimen Accepted |
Daily including weekends |
| Times Available |
0730-1600 |
| Test Performed |
Test performed by reference laboratory. Results available in four days. |
| Available Stat? |
Pathologist approval required. |
| Description |
Fletcher factor deficiency accounts for a prolonged activated partial thromboplastin time test (APTT) result. However, the deficiency has no clinical consequences. |
| Reference Interval |
65-135% |
| Critical Value |
-- |
| Therapeutic Range |
-- |
| Follow-up Test |
-- |
| Associated With |
-- |
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