Your lab report arrived. Rows of numbers, abbreviations you’ve never seen, reference ranges that mean nothing without context. Your doctor’s office sends a message that says “your results look normal” — and that’s the end of the conversation. At Provena Care, we believe you should understand exactly what your labs are measuring and what the numbers actually mean for your health.
The Complete Blood Count (CBC)
WBC — immune system frontline; elevated can indicate infection, inflammation, stress; low can suggest viral illness or medication effects. Hemoglobin/Hematocrit — oxygen-carrying capacity; elevated hematocrit (above 54%) in TRT patients requires protocol adjustment. MCV — low = iron deficiency; high = B12 or folate deficiency. Platelets — clotting; low can indicate autoimmune conditions or medication effects.
The Comprehensive Metabolic Panel (CMP)
Fasting glucose: Optimal 70–90 mg/dL. Standard “normal” is below 100, but blood sugar dysregulation exists for years before fasting glucose rises — this is why Provena also evaluates fasting insulin. Liver enzymes (AST/ALT/GGT): Elevated can indicate fatty liver, alcohol, medication effects, or vigorous exercise in the prior 48 hours. GGT is the most sensitive marker of alcohol intake and metabolic syndrome. Creatinine: Kidney function marker; highly muscular individuals naturally have higher levels.
The Lipid Panel
Standard lipid panels report total cholesterol, LDL, HDL, and triglycerides. These are a starting point, not a complete cardiovascular assessment. Triglycerides: optimal below 80 mg/dL; elevated triglycerides combined with low HDL is one of the most reliable indicators of insulin resistance, often appearing years before fasting glucose rises. We discuss ApoB — a more accurate cardiovascular risk marker — in our dedicated article.
Thyroid Panel
TSH alone is insufficient. TSH measures the pituitary’s output, not actual thyroid hormone production. Optimal TSH at Provena: 1.0–2.5 mIU/L. We routinely evaluate Free T3 and Free T4 because TSH alone doesn’t tell us whether thyroid hormone is actually reaching tissues in functional amounts.
Key Markers Most Standard Panels Omit
- HbA1c — average blood sugar over 90 days; Provena optimal target below 5.4%
- Fasting Insulin — rises years before blood sugar becomes abnormal; the earliest detectable sign of insulin resistance; optimal below 8 mIU/mL
- hs-CRP — low-grade chronic inflammation; below 1.0 mg/L is low cardiovascular risk; above 3.0 is high risk
- Vitamin D — despite Miami’s sunshine, deficiency is extremely common; Provena target 50–80 ng/mL
- Ferritin — earliest sign of iron depletion, often present months before anemia; also elevated in inflammation and metabolic syndrome
The bottom line: “Normal” is not the same as “optimal.” Every reference range was derived from population statistics, not from research on what values are associated with optimal health and longevity. At Provena, we interpret your labs in the context of your symptoms, health history, and goals — not as isolated numbers checked against a population average.