Nursing homework help
The angiotension renal system adjusts blood circulating volume and pressure during hypertension management.
During treatment for high blood pressure, the angiotension renal system changes the amount and pressure of blood in circulation. It turns on when blood pressure drops to make the kidneys absorb more electrolytes and water (Foundation & Lappin, 2017). Angiotensin II and aldosterone in the brain raise the flow of sympathetic nerves, which causes high blood pressure. The system keeps fluid and electrolyte levels in balance, manages vascular resistance, and tones the body (Takahashi et al., 2011). In this way, it increases oxidative stress in the brain, which makes the sympathetic nervous system send out more blood.
Chronic renal failure can be caused by high blood pressure. This makes the arteries around the kidneys weaken, narrow, or harden. So, the damaged arteries don’t send enough blood to the kidney tissues because the nephrons don’t get enough oxygen and food (Pugh et al., 2019). When the kidneys are hurt, they can’t filter blood well or keep blood pressure in check.
References:
Fountain, J. H., & Lappin, S. L. (2017). Physiology, renin-angiotensin system.
Pugh, D., Gallacher, P. J., & Dhaun, N. (2019). Management of hypertension in chronic kidney disease. Drugs, 79(4), 365-379.
Takahashi, H., Yoshika, M., Komiyama, Y., & Nishimura, M. (2011). The central mechanism underlying hypertension: a review of the roles of sodium ions, epithelial sodium channels, the renin-angiotensin-aldosterone system, oxidative stress, and endogenous digitalis in the brain. Hypertension Research, 34(11), 1147-1160.
