Snapshot A 31-year-old G1P0 woman presents to her obstetrician at 19 weeks gestation for a check-up. She feels well and has no complaints other than some minor back pain. At her last check-up 3 weeks ago, her blood pressure was 152/88 mmHg. Today, her blood pressure is 156/90 mmHg. She is diagnosed with chronic hypertension and started on oral hydralazine. Introduction Direct-acting vasodilators function by dilating arterial vessels without any direct activity on venous circulation Drugs login to view 4 more bullets Hydralazine Mechanism of action login to view 5 more bullets Physiologic effects login to view 5 more bullets Clinical use login to view 8 more bullets Toxicity login to view 5 more bullets Minoxidil Mechanism of action login to view 1 more bullet Clinical use login to view 1 more bullet Toxicity login to view 1 more bullet