1. Infusion of angiotensin II antagonist failed to restore the blood pressure of short-term Goldblatt 2-kidney hypertensive rats to normal levels before and after sodium restriction.

2. The blood pressure of both normal and sodium-restricted Goldblatt 2-hypertensive rats remained elevated 6 h after bilateral nephrectomy.

3. The residual hypertension found during antagonist infusion and after bilateral nephrectomy is not maintained by the renin—angiotensin system or sodium retention.

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