Nowadays, genetic testing for FH focuses on identifying a pathogenic variant in 1 of the 3 FH genes (ie, low-density lipoprotein receptor [LDLR], apolipoprotein B [APOB], and proprotein convertase subtilisin/kexin type 9 [PCSK9]). The gene discussed is LDLR; the disease is familial hyperaldosteronism.