RENAL PHYSIOLOGY-FRACTIONAL EXCRETION OF SODIUM

From NeuroRehab.wiki

Revision as of 20:03, 13 March 2023 by Dr Appukutty Manickam (talk | contribs) (Imported from text file)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

SUMMARY

1. The fractional excretion of sodium (FENa) is the ratio of excreted Na+ to the total filtered load of Na+.
2. It is used to differentiate prerenal azotemia (FENa < I%, high levels of nitrogen-containing compounds such as creatinine and urea) from acute tubular necrosis (FENa > 2%, ATN).

3. Other causes of AKI with FENa < I% include: contrast­ induced ATN, cardio-renal syndrome, hepato-renal syndrome, non-oliguric ATN, pigment nephropathy & acute glomerulonephritis.


Reference(s)

Wilkinson, I., Furmedge, D. and Sinharay, R. (2017). Oxford handbook of clinical medicine. Oxford: Oxford University Press. Get it on Amazon.
Feather, A., Randall, D. and Waterhouse, M. (2020). Kumar And Clark’s Clinical Medicine. 10th ed. S.L.: Elsevier Health Sciences. Get it on Amazon.
Hannaman, R. A., Bullock, L., Hatchell, C. A., & Yoffe, M. (2016). Internal medicine review core curriculum, 2017-2018. CO Springs, CO: MedStudy.
Therapeutic Guidelines. Melbourne: Therapeutic Guidelines Limited. https://www.tg.org.au [Accessed 2021].

Retrieved from "https://www.neurorehab.wiki/index.php?title=RENAL_PHYSIOLOGY-FRACTIONAL_EXCRETION_OF_SODIUM&oldid=18125"