The activity below illustrates the effect of which of the following? Choose from the following: (A) concentration osmotic gradient effect without ADH or aldosterone (B) concentration osmotic gradient effect with aldosterone (C) concentration osmotic gradient effect with anti-diuretic hormone

What is the role of RAA on the secretion of Aldosterone? Explain the RAA pathway

Hyperaldosteronism (excessive aldosterone release) can be caused by many disease states including tumours in the adrenal gland. By now, we should be familiar with how this will affect sodium balance and blood pressure, but how would hyperaldosteronism affect potassium levels and why? Select one potassium effect (a or b) and one cause (c-f). a. The patient will become hyperkalemic. O b. The patient will become hypokalemic. O c. Aldosterone increases sodium reabsorption in the proximal tubule. Increased sodium reabsorption increases water reabsorption, which then establishes a concentration gradient to increase potassium reabsorption. Od. Aldosterone increases sodium reabsorption in the collecting duct. Increased sodium reabsorption increases water reabsorption, which then establishes a concentration gradient to increase potassium reabsorption. O e. Aldosterone increases sodium reabsorption in the collecting duct by increasing expression of EnaCs, sodium/potassium exchangers, and…

Regulation of extracellular potassium is not particularly important because only about two percent of the total body potassium is in the extracellular fluid. TRUE or FALSE