Surgery Books Flashcards
1
Q
What is the equation for FENa?
A
(Urine Na x plasma Cr) / (Plasma Na x Urine Cr)
2
Q
In a patient that is post-op, a FENa >1 suggests what?
A
Renal failure (vs dehydration)
3
Q
In a patient that is post op, urine Na concentration of 10-20 mEq suggests what?
A
Dehydration, vs 40 mEq suggests renal failure
4
Q
What electrolyte level may prolong a post-op ileus?
A
Hypokalemia
5
Q
How are linear skull fractures treated?
A
If closed, they are left alone. Open Fxs require wound closure. If comminuted or depressed, they have to be treated in the operating room.
