TBXA2R and hydrops fetalis: We found no difference between SHAM (n = 4) and HF‐rEF (n = 4) rats in TxA2‐R protein (SHAM: 1.00 ± 0.49; HF‐rEF: 0.72 ± 0.44 a.u.; p = 0.60) or mRNA expression (SHAM: 1.00 ± 0.07; HF‐rEF: 0.93 ± 0.09 a.u.; p = 0.51) within L4 and L5 DRG tissue.