1. PaO2<552. SaO2<883. Hct>554. evidence of cor pulmonale June 22, 2017 mfadmin Medicine Average Rating 0 out of 5 stars. 0 votes.You must log in to submit a review. 1. PaO2<552. SaO2<883. Hct>554. evidence of cor pulmonale 4 indications of O2 for COPD pt