A study carried out by Microbiologists at St George’s Hospital, using test data from South West London Pathology (SWLP) laboratories, shows that patients with laboratory evidence of Covid-19 in the first wave of the pandemic were 94% protected against reinfection in the second wave.
|Reporting frequency||1 week|
Samples must be filled to mark, taken with minimum stasis and analysed within 4 hours after venipuncture.
Use multidisciplinary request form – under ‘other tests’
Reference range information:
Lupus inhibitor (Lupus anticoagulant screen: DRVVT&RTI tests)
Written comment DRVVT&RTI = 0 -1.20
Antithrombin 75 – 150iμ/dl
Protein S 66 – 130% of normal control plasma
Protein C 70 – 150iμ/dl
Activated Protein C Resistance Ratio >2.2 – 3.5
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