What do you expect the results of renin activity and potassium concentrations to be after surgery for a Conn's tumor?
Understand the Problem
The question is asking about the expected blood test results for a patient with a Conn's tumor, specifically regarding renin activity and potassium concentrations after the tumor has been removed. The underlying physiological implications of the adenoma affecting aldosterone production must be considered in determining the expected results.
Answer
Renin activity increases, potassium normalizes.
After surgery for a Conn's tumor, expect increases in renin activity and normalization of potassium concentrations.
Answer for screen readers
After surgery for a Conn's tumor, expect increases in renin activity and normalization of potassium concentrations.
More Information
Surgery to remove a Conn's tumor often leads to a resolution of hypokalemia as aldosterone levels drop, thus allowing potassium to normalize. The suppression of renin due to excess aldosterone is reversed, leading to increased plasma renin activity.
Tips
A common mistake is assuming that both renin activity and potassium levels remain unchanged after surgery. Surgery often resolves these imbalances by addressing the source of aldosterone overproduction.
Sources
- Conn Syndrome - StatPearls - NCBI Bookshelf - ncbi.nlm.nih.gov
- Short- and long-term results of laparoscopic adrenalectomy for ... - ncbi.nlm.nih.gov
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