Synonym(s)
ASST; Autologous plasma skin test; Autologous plasma test; Autologous serum test; Plasmatest autologous
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Test procedure for the diagnosis of autoreactive, chronic urticaria.
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However, the result of this study showed that the autologous serum test and ASST seem to be equivalent.
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Blood collection in sterile tubes without anticoagulant
After 30 min. blood clotting at room temperature, remove by centrifugation at 450-500g for 10 min.
Intracutaneous test (0.05ml undiluted autologous serum) on the skin of the flexor-sided forearm
Control with physiological saline solution and 0.05ml 0.5-1.0 ug histamine solution
After 30 min. determination of the respective square diameters
Positive autologous serum test: Quaddle diameter (autologous serum) - Quaddle diameter (NaCl) >1.5mm (requirement: histamine control = positive)
LiteratureThis section has been translated automatically.
- Yildiz, O. et al (2011) Evaluation of autologous plasma skin test in patients with chronic idiopathic urticaria. Br. J. Dermatol 165:1205-1209
Prof. Dr. med. Peter Altmeyer