Before the course, the highest percentages of responses at the high and very high knowledge levels, combined and by category, were observed for the following contents: PPH prevention with the intramuscular use of oxytocin 10 IU (59.9%) in category I; pharmacological treatment of PPH (64.6%) in category II; and PPH management due to placental accreta (30.5%) in category III. This evidence concerns the gene OXT and pulmonary arterial hypertension.