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Chemistry & Basic Tests
BUN (Blood Urea Nitrogen)
Measures waste product from protein metabolism. Used to evaluate kidney function and hydration status.
CPT code
84520
Turnaround time
24–72 hours
Fasting required
No fasting needed
Collection container
Gold Top (SST)
About this test
Measures waste product from protein metabolism. Used to evaluate kidney function and hydration status.
Specimen requirements
Collection container
Gold Top (SST)
gold top
Specimen
Serum
How to prepare
- 1
Bring a valid photo ID to your appointment
- 2
Plan for a 15–30 minute visit
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