Unexpected Pregnancy Test Results

A 39-year-old woman with non–small cell lung cancer underwent preprocedural pregnancy testing. Results showed increased levels of human chorionic gonadotropin, but she reported not being sexually active. Repeat testing after treatment with antibody-blocking agent was similar. View this table: Table 1. Quantitative hCG assays. 1. What forms of human chorionic gonadotropin (hCG) are measured in most quantitative hCG …