Genetic Testing Institute,inc PF4 Concentrated Wash (10x), REF 403624, packaged in the following assay kits: 1. ImmucorGamma LIFECODES PF4 IgG (catalog numbers HAT13G, HAT45G) and 2. ImmucorGamma LIFECODES PF4 Enhanced (catalog numbers X-HAT13, X-HAT45) The PF4 IgG assay is an Enzyme Linked Immunosorbent Assay (ELISA). The PF4 IgG ELISA is intended to detect IgG antibodies in human serum that react with Platelet Factor 4 (PF4) when it is complexed to heparin or other polyanionic compounds. The PF4 IgG kit contain Recall
Class II: A situation in which use of, or exposure to, a violative product may cause temporary or medically reversible adverse health consequences or where the probability of serious adverse health consequences is remote
Class II recall indicates potential for temporary health effects.
This AI-generated summary is provided for general informational purposes only and is derived from publicly available recall notices. It supplements but does not replace official agency classifications or safety instructions.
Check Your Product
According to the U.S. Food and Drug Administration (FDA)
Product
PF4 Concentrated Wash (10x), REF 403624, packaged in the following assay kits: 1. ImmucorGamma LIFECODES PF4 IgG (catalog numbers HAT13G, HAT45G) and 2. ImmucorGamma LIFECODES PF4 Enhanced (catalog numbers X-HAT13, X-HAT45) The PF4 IgG assay is an Enzyme Linked Immunosorbent Assay (ELISA). The PF4 IgG ELISA is intended to detect IgG antibodies in human serum that react with Platelet Factor 4 (PF4) when it is complexed to heparin or other polyanionic compounds. The PF4 IgG kit contain
Brand
Genetic Testing Institute,inc
Lot Codes / Batch Numbers
Reagent Lot Numbers: 3001620, 3001987, 3002083, 3002153
Products Sold
Reagent Lot Numbers: 3001620, 3001987, 3002083, 3002153
Genetic Testing Institute,inc is recalling PF4 Concentrated Wash (10x), REF 403624, packaged in the following assay kits: 1. ImmucorGamma LIF due to Some Lots of PF4 Concentrated Wash (10X) are a slightly more dilute concentration. This may lead to slightly increased Optical Density (OD) values. Sa. This is a Class I recall, indicating a high risk of serious health consequences or death. Based on FDA medical device enforcement report.
Summary derived from FDA notice
Reason for Recall
As stated by FDA
Some Lots of PF4 Concentrated Wash (10X) are a slightly more dilute concentration. This may lead to slightly increased Optical Density (OD) values. Samples with a higher background reactivity may demonstrate false positive result (borderline reactivity) at or near the cutoff for the assay.
Recommended Action
Per FDA guidance
Healthcare providers and patients should stop using the device and contact the manufacturer for further instructions. Report problems to FDA MedWatch.
Verify this information on the official source
For complete details and official instructions, check the U.S. Food and Drug Administration (FDA) directly.
View official FDA recall noticePage updated: Jan 11, 2026