Prevalence
Causes
Clinical
features
Investigations
Therapy
Prognosis
|  |  | | Investigations |
-
urea and electrolytes, creatinine
a
-
glucose
d
-
serum osmolality
a
If indicated
d
-
cortisol
-
thyroid function tests
Consider sending
-
a urine sample for biochemistry
-
urine sodium
c
-
urine chloride
c
-
urine creatinine c
-
urine osmolality
c
Calculate
-
the fractional excretion of sodium
c
[Urine Na x Plasma creatinine]/[Plasma Na x Urine creatinine] x 100
-
the fractional excretion of chloride c
[Urine Cl x Plasma creatinine]/[Plasma CL x Urine creatinine] x 100
|