FENa FENa

Synonyms

Allscripts (AEHR) Order Name

Not Orderable

Sunrise Clinical Manager (SCM) Order Name

Not Orderable

EPIC Order Name

Clinical Info

The Fractional excretion of sodium (FENa) and the Fractional excretion of Urea (FEUrea) tests require a serum and random urine specimen to both be collected within a short period of time from each other.

Specimen Type

Specimen Volume

Container

Urine-Yellow Top

Collection Instructions

Container/Tube: Gold top tube AND Urine Container
Specimen: 1 mL serum and 1 mL Random Urine

Transport Instructions

Specimen Stability

Methodology

Calculation
The calculated values are:
FENa % = (Urine Sodium x Serum Creatinine) / (Serum Sodium x Urine Creatinine) x100.
FEUrea % = = (Urine Urea x Serum Creatinine) / (Serum Urea x Urine Creatinine) x100.

Days Performed

Performing Laboratories

Northwell Health Laboratories

CPT

PDM

DONOTSEND

Result Interpretation

Forms