A 57 years old woman is admitted to the hospital with hyponatremia and her laboratory tests show that inappropriate ADH secretion is suspected and further investigations are performed to diagnose the cause.
Which mechanism of action could most likely be increased in the kidney in this case?

Question

A 57 years old woman is admitted to the hospital with hyponatremia and her laboratory tests show that inappropriate ADH secretion is suspected and further investigations are performed to diagnose the cause.  
 Which mechanism of action could most likely be increased in the kidney in this case?

Accepted Answer

activation of renal distal tubule intracellular protein kinase A

Answer

increase amount of excreted potassium by the kidney in the urine

Answer

increase water reabsorption from the loop of Henle

Answer

glomerular filtration rate through the ADH V1 receptors

Answer

increase Na + /K +  ATPase pump activity at the renal tubular border

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A 57 years old woman is admitted to the hospital with hyponatremia and her labor...

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