I almost never use furosemide drips for this: I think if the patient has a high threshold (the usual reason to start a drip) the drip will probably take longer to achieve a response and, if it is not enough, it's less predictable on which exact dose is the patient...

I get your point, but, given threshold-ceiling effect and half life of furosemide, isn't it very difficult to predict the response to furosemide drips? If a pt has a threshold of 80mg and you start a drip at 20 mg/h, you won't get the effect until 4h and later you'll give more dose than needed.

References:
- pubmed.ncbi.nlm.nih.gov/32125953/
- pubmed.ncbi.nlm.nih.gov/33914188/

There are also signs specific of different etiologies

- Bowel wall enhancement can be:
> ↑: halo/target sign in venous ischemia and early stages, or white pattern due to intramural hemorrhage or reperfusion
> normal (grey): intermediatte phase
> ↓ (pale) -> impending infarction

Different patterns of enhancement may occur simultaneously