Silly question. Urine output per hour?

[anonymous1919]

I can't remember what the normal urine output per hour is?

I keep thinking 33cc/hr? (If that's wrong, why am I thinking that???)

lol, thanks

[Mirunia22]

Yesterday I had math test and I'm so confused about it.

Following formula 05ml/kg/hr

Patient weighs was 90 kg his urine output should be 45 ml

I have answered 45ml/kg/hr

That's mean I have answered wrong?

Please.

[KrCmommy522, BSN, RN]

Mirunia22 said:

Yesterday I had math test and I'm so confused about it.

Following formula 05ml/kg/hr

Patient weighs was 90 kg his urine output should be 45 ml

I have answered 45ml/kg/hr

That's mean I have answered wrong?

Please.

You might be better off starting your own post, but I'll give my two-sense!

I think you meant 0.5 mL/kg/hr, not 05?

0.5 mL/kg/hr at 90 kg

So 0.5 mL/kg/hr x 90 kg = 45 mL/hr

Then, if you have the hr, such as a 12 hr shift, then you take 45 mL/hr x the total hrs (such as 45 mL/hr x 12 hr = 540 mL).

By taking the 0.5 mL/kg/hr and multiplying it by the pts weight in kg, you are cancelling out the kgs in the formula and the kg in the pts weight, leaving you with mL/hr. Then, if you multiply the mL/hr by a certain number of hrs, you are cancelling out the hrs in the formula and the hrs in the specified number of hrs.

So,

0.5 mL/kg/hr x 90 kg = 45 mL/hr (you cancel out the kg in 0.5 mL/kg/hr, leaving you with 0.5 mL/hr, and you cancel out the kg in the 90 kg, leaving you with 90, so its 0.5 mL/hr x 90 = 45 mL/hr).

Hope that made sense!

But anyways, your answer is correct, you just have the units wrong because you still have kg in it.