Like, I know our body absorbs a bit of the water but idk 😅
In: 0
If you are in the hospital and have a catheter in, the nurses will monitor what’s called I&O, or In & Out. They’re basically taking a rough estimate of how much fluid you’re consuming vs how much urine is ending up in that bag at the end of the cath. They do this because you should ROUGHLY be peeing out about a much as you take in. If you’re taking in 1 L/day, but only urinating half of that, then the doc needs to figure out why. Are your kidneys malfunctioning? Is there a bladder problem? Whatever, something isn’t right. If you’re taking in 1 L, and urinating 0.7 L, you’re probably fine, absent other symptoms that something may be wrong (flank pain, urethral burning, abdominal distension, etc.)
That’s to say, it’s not a perfect 1:1, but it should be relatively close
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