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- Dec 2, 2008
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Hi all,
I have another question on Cr and Lasix.
I don't know the PMHx of this patient or much about her, as I had nothing to do with them but just was listening to a few parts. Her Cr was 3.0, in for heart failure. So her heart is inadequately perfusing her body with blood and kidneys, resulting in insufficiency causing her Cr to elevate. Resident gave the lady 40 mg of Lasix IV, and the attending told her that wasn't enough to get her to diurese, and suggested 80 or 120 mg IV instead.
- My question is why does a worse Cr need a higher dose of Lasix?
- Also, if this patient was hypotensive (she was), and we give her a lot of Lasix, wouldn't she just be getting rid of the fluid that's in her vessels, which would further exacerbate her hypotension?
- I guess I don't understand why the patient becomes hypovolemic when they are fluid overloaded.
Thank you
I have another question on Cr and Lasix.
I don't know the PMHx of this patient or much about her, as I had nothing to do with them but just was listening to a few parts. Her Cr was 3.0, in for heart failure. So her heart is inadequately perfusing her body with blood and kidneys, resulting in insufficiency causing her Cr to elevate. Resident gave the lady 40 mg of Lasix IV, and the attending told her that wasn't enough to get her to diurese, and suggested 80 or 120 mg IV instead.
- My question is why does a worse Cr need a higher dose of Lasix?
- Also, if this patient was hypotensive (she was), and we give her a lot of Lasix, wouldn't she just be getting rid of the fluid that's in her vessels, which would further exacerbate her hypotension?
- I guess I don't understand why the patient becomes hypovolemic when they are fluid overloaded.
Thank you