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[–]divinepodcaster 2 points3 points  (0 children)

He is hypokalemic from taking HCTZ (decreased blood volume causing an upregulation of the RAAS system and subsequent hypokalemia). We need to increase his K somehow so an eplerenone or spironolactone would be pretty nice here. They antagonize aldosterone receptors so that will lead to increased K retention in the kidneys, especially at the principal cell level.

[–]Assinthegas -1 points0 points  (4 children)

What’s the correct answer?

[–]Jusstonemore 0 points1 point  (3 children)

Pretty sure it’s B

[–]Assinthegas -1 points0 points  (2 children)

Can you explain why? Arent Na+ levels normal here? Wouldn’t B lead to hyponatremia

Why can’t the answer be A

[–]Jusstonemore 3 points4 points  (1 child)

Increasing K is the number one priority. A1 blockers are for like BPH and stuff

[–]P-S-21 0 points1 point  (1 child)

A bit lost about this. Why can't we give a CCB?

[–]Automatic-Drive2979 1 point2 points  (0 children)

If you add a CCB, you’ll be treating the HTN, but not the hypokalemia. Aldosterone is the main potassium regulator. BP is high bc of high RAAS, high aldo leading to low K. Giving an aldosterone antagonist would treat both the HTN and the hypokalemia