Electrolytes are usually measured as part of a renal profile, which measures sodium, potassium, creatinine and urea. Serum urea correlates with catabolic states and increases during tissue/organ trauma, while circulating levels are a good indication of a patient’s overall hydration status and/or kidney function.
Suspected renal failure. Monitoring of patients receiving intravenous fluids Monitoring of established chronic kidney disease
|Sample & container required||SST (gold top) 24 hour urine collection|
|Sample volume||Blood: 0.5 mL. Urine: 24 hour collection|
|Turnaround time||Blood: 1 day. Urine: 2 days|