Which of the following statements about hydralazine is not true
Hydralazine is a predominant aerial dilator that relaxes blood vessels by nitric oxide and opening potassium channels. There is compensatory increase in plasma renin activity with all vasodilators. Postural hypotension is predominantly caused by dilatation of veins and is not a significant feature of hydralazine
It causes direct relaxation of blood vessels
It causes detection of both aerial and venous
Postural hypotension is not a common problem
It increases plasma renin activity
Cardiovascular system