Comparative analysis of capillary versus venous blood for serologic detection of SARS-CoV-2 antibodies by rPOC lateral flow tests

A comparison of rapid point of care serology tests using finger prick and venous blood was done on 278 participants In a laboratory setting, IgG sensitivity neared 100%;however, IgG sensitivity dramatically dropped (82%) in field testing Possible factors include finger prick volume variability, hemolysis, cassette readability and operator training