Comprehensive Panels

Kidney Function Panel

Unit: mg/dL, mL/min/1.73m²ID: KID001

What This Test Measures

Kidney filtration and waste removal

Conventional vs. Functional Optimal Range

Conventional "Normal"
BUN 7-20, Creatinine 0.6-1.2, GFR >60, BUN/Creat ratio 10-20 mg/dL, mL/min/1.73m²
Your doctor says you're "fine" anywhere in this range
Functional Optimal
BUN 10-15, Creatinine 0.8-1.1 (men), 0.6-0.9 (women), GFR 90-160, BUN/Creat ratio 11.4-14.6 mg/dL, mL/min/1.73m²
This is where you actually feel great

The gap between these ranges is why you feel terrible with "normal" labs. Conventional medicine waits for disease. Functional medicine optimizes for health.

Gabriel's Take

Kidney function is vital. GFR >90 optimal (not just >60). GFR 60-90 = reduced reserve, monitor. GFR <60 = CKD. BUN/Creat ratio: <10 = liver issue or low protein, >20 = dehydration or high protein catabolism. Functional medicine monitors kidney trends to catch decline early.

When This Test Is High

High BUN/Creat: kidney disease, dehydration; Low GFR: chronic kidney disease

When This Test Is Low

Low BUN: liver disease, malnutrition

Related Conditions

Chronic kidney disease, dehydration, uremia

Recommended Follow-Up

If GFR <60, stage CKD; optimize BP, glucose; avoid nephrotoxins (NSAIDs)