Kidney Function Panel
What This Test Measures
Kidney filtration and waste removal
Conventional vs. Functional Optimal Range
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)
Related Tests in Comprehensive Panels
Comprehensive Metabolic Panel (CMP)
Glucose, kidney function (BUN, creatinine), electrolytes (Na, K, Cl, CO2), calcium
Liver Function Panel
Liver health: enzymes (ALT, AST, ALP), protein production (albumin), bilirubin
Sex Hormone Panel (Comprehensive)
Total/Free Testosterone, Estradiol, Progesterone, DHEA-S, SHBG