A 4 week old female child with normal genitalia presents to the emergency depament with severe dehydration, hyperkalemia and hyponatremia. The measurement blood levels of which of the following will be helpful?

All of these actions are integral to increasing and lowering blood vessels. Indirectly, the hormone also helps maintain the blood&;s pH and electrolyte levels. Once the body is rehydrated and has proper salt levels in the blood, renin levels fall, and aldosterone levels lower as a result. Reference: GHAI Essential pediatrics, 8th edition