Spanish to English Medical Medical (general)

This pregnant woman was being seen in Mexico, after having been previously seen in the US. The word in question is a little difficult to read, but I'm pretty sure it's "fu". If not, perhaps it could be "fo".

A la exploración física se encuentra paciente consciente, intranquila, con buena coloración de tegumentos, sin compromiso cardiorrespiratorio, abdomén con fu de 29cm; con producto único vivo intrauterino con frecuencia cardíaca fetal de 164 latidas por minutó, situación longitudinal, cefálico, dorso derecho, una contracción de 40 segundos.