How does aldosterone help to maintain blood pressure?

Raising bp: It does by raising BP when it's low or when dehydrated.

Raising bp: It dpes by raising bo when it's low or when dehydrated.

Aldo BP: Aldo is the major salt retaining body hormone. No aldo you die of low BP due to not being able to retain salt. Too much aldo and too much salt and you die of HTN due to the excess aldo causing increased salt storage in body. The only way to get rid of the salt and the high BP is to remove the cause of the excess aldo or eat less salt or use meds that block aldo. I specialize in this.