OXT and pulmonary arterial hypertension: After the course, self-perception regarding the highest percentages of respondents at the high and very high knowledge levels, combined and by category, were PPH prevention with the intramuscular use of oxytocin 10 IU (98.7%) in category I; pharmacological treatment of PPH (96.4%) in category II; and use of NASG (89.3%) and PPH management due to placental accreta (89.3%) in category III.