lag in urinary output in DKA

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If a patient comes in with DKA and fluids are initiated, how long will it take for you to see urinary output? (Let's say this patient is really dehydrated, and has low output).

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Specializes in Critical Care, ED, Cath lab, CTPAC,Trauma.

That would depend on a variety of factors. Age, pre-existing co-morbidity, renal involvement. You should see some improvement in 24 hours unless there is renal involvement

But there is not standard answer....what was the question on your class?

Historically DKA has an increased output and that is what causes the dehydration to get to the point of dehydration that stops urine output the patient is in trouble.

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Specializes in Pediatric/Adolescent, Med-Surg.
If a patient comes in with DKA and fluids are initiated how long will it take for you to see urinary output? (Let's say this patient is really dehydrated, and has low output).[/quote']

Does the pt have low urine output? Even though dehydrated the majoirty of DKA's present with polyuria, so even before you initiate fluids the pt may be voiding a lot

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oh. well i goes what my prof was saying is that the pt is dehydrated until they are considered to be in oliguria. for exam purposes he told us to keep that in mind. With that said, if someone was severely dehydrated and had an output of like 10 ml/hr, how long would it take to see an output after initiation of fluids? I'm saying maybe the patient came to the ER severely, and i mean severely, dehydrated. maybe urine output would be even less. How long would it take to see urine output? I mean, you have to give the cells time to rehydrate-at least that's what she said.

I just want an idea. Thank you

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Specializes in Critical Care, ED, Cath lab, CTPAC,Trauma.
oh. well i goes what my prof was saying is that the pt is dehydrated until they are considered to be in oliguria. for exam purposes he told us to keep that in mind. With that said, if someone was severely dehydrated and had an output of like 10 ml/hr, how long would it take to see an output after initiation of fluids? I'm saying maybe the patient came to the ER severely, and i mean severely, dehydrated. maybe urine output would be even less. How long would it take to see urine output? I mean, you have to give the cells time to rehydrate-at least that's what she said.

I just want an idea. Thank you

Look at what you wrote. Your patient is dehydrated with DKA even in the presence of massive urine output.
the pt is dehydrated until they are considered to be in oliguria.
Did you mean to say that he said they were hydrated until they we oliguric? Anything less than 30 cc/hr IS oliguric.

There is no standard time. It depends on whether the kidney have disease or damage from the dehydration. It depends on the labs. If the patient is oliguric it can take at least 24 hours or more for the patient to "catch up". The is no set formula no set time.

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Yeah I didn't mean to say that, lol. What I meant to say is that ONCE the patient is oliguric (urine output

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It varies. The general rule of thumb in fixing screwed-up physiology is, "Acute onset, rapid fix; gradual onset (or long duration), slow fix."

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