15 days at the VA – day 4

20 Dec
2009

The team is relatively stable, but most things remain on hold until Monday.  Our patients were improving yesterday.  Here was our big discussion point of the day.

We have a patient with ascites and a new cirrhosis diagnosis.  We first proved that he had secondary hyperaldosteronism using the transtubular potassium gradient. We started spironalactone and furosemide.  Because the patient did not have a significant response to oral furosemide 40 mg, I raised the question of trying bumetanide 1 mg instead.

Here was my reasoning.  Both loop diuretics are currently generic drugs available at WalMart prices.  Furosemide has inconsistent absorption, ranging from 10%-90% across patients.  Bumetanide has consistent absorption in the range of 80-90%.  The estimated equivalence ratio is 40 mg to 1 mg.

Given the more predictable absorption, we should wonder whether we should abandon furosemide and switch to bumetanide as our loop diuretic of choice.  I believe if both diuretics were released simultaneously, we would clearly choose bumetanide.

We decided to try bumetanide 1 mg b.i.d.  I will report back on the impact of that decision.  For more on loop diuretics, I highly recommend a colleague's paper – A Comprehensive Review of the Loop Diuretics: Should Furosemide Be First Line?

Related posts:

  1. 15 days at the VA – day 10
  2. 15 days at the VA – day 5
  3. 17 days at the VA – Day 2
  4. COPD and CHF
  5. 17 days at the VA – day 12

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2 Responses to 15 days at the VA – day 4

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PMD

December 20th, 2009 at 11:44 pm

Why not Torsemide? Torsemide causes much more diuresis and dont have much effect on electrolytes especially hypokalemia as compared to Furosemide.

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DB's Medical Rants » Blog Archive » 15 days at the VA – day 10

January 4th, 2010 at 7:27 pm

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