Functional Medicine Lab Ranges
Written by Dr. Diane Mueller
Conventional medicine’s frame of reference is disease management. While this is a necessary part of our health care system, it is only one lens into how we can address health.
At My Lyme Doc, we are focused on moving you towards optimal wellness. This means that the way we interpret lab values is oriented to looking at how people’s labs look when they are in optimal health. Below you will find lab values for many common functional medicine reference ranges. If you compare these to standard testing, you will find that functional medicine lab values are different. Again, this is because we are not oriented towards disease management, but instead towards how we can make your body feel its best!
Thyroid Functional Medicine Lab Ranges
| TSH: | 0.5-2 uIU/mL |
| Free T4: | 1-2.3 ng/dL |
| Free T3: | 3.3-8 pg/mL |
| Reverse T3: | 11-18 ng/dL |
| TPO Antibodies: | <2 IU/mL |
| TG Antibodies | <2 IU/mL |
| Total T4 | 6-12 ug/dL |
| Total T3 | 100-180 ug/dL |
| T3 Uptake | 28-38% |
**30% increase in thyroid hormones and a decrease in TSH with pregnancy is normal.
CBC Functional Medicine Lab Ranges
| WBC | 5-10 |
| RBC | 4.4 – 5 (can be higher at higher elevation) |
| HBG | 13.5-15 g/dL |
| HCT | 40-50% |
| MCV | 85-92 fL |
| MCH | 27.7 – 32 pg |
| MCHC | 32-36 g/dL |
| RDW | 11.7-15% |
| Platelets | 155K-379K |
| Neutrophils | 40-60% |
| Lymphocytes | 25-40% |
| Monocytes | 4-7% |
| Eosinophils | 0-3% |
| Basophils | 0-3% |
| Neutrophil/Lymphocyte Ratio | 2/1 |
CMP and Other Markers Functional Medicine Lab Ranges
| Glucose | 0.5-2 |
| HgA1C | <5.4 % |
| Uric Acid | 3.2 – 5.5 mg/dL |
| BUN | 13-18 mg/dL |
| Creatinine | .65-.9 mg/dL for Females .85-1.1 mg/dL for Males |
| eGRF | >59 mL/min/1.73 |
| BUN/Creatinine | 10-20 |
| Sodium | 134-140 mmol/L |
| Potassium | 4.5- 5.1 mmol/L |
| Chloride | 100-106 mmol/L |
| CO2 | 22-27 mmol/L |
| Anion Gap | Calculation: Na + K – CO2 – CL = 6-16 or: Na – CO2 – CL = 3 – 11 |
| Phosphorus | 3.5-4.0 mg/dL |
| Calcium | 9.2-10.1 mg/dL |
| Magnesium | 2.0-2.5 mg/dL |
| Total Protein | 6.9-7.4 g/dL |
| Albumin | 4.0-5.0 g/dL |
| Globulin | 2.4-2.8 g/dL |
| A/G | 1.5-2.0 |
| Bilirubin direct | 0-0.4 mg/dL |
| Total Bilirubin | .1-1.2 mg/dL |
| Alkaline Phosphorus | 44-90 IU/L |
| LDH | 135-180 IU/L |
| ALT | < 26 Females <30 Males |
| AST | < 26 Females <30 Males IU/L |
| GGTP | 10-21 Females 10-29 Males IU/L |
| TIBC | 250-350 ug/dL |
| Serum Iron | 40-135 ug/dL (if goes on the low end, make sure transferrin is okay) |
| Transferrin | 30-45% |
| Ferritin | 30-100 Females 30-200 Males |
| Cholesterol | 150-220 mg/dL |
| Triglycerides | <100 |
| HDL | 55-85 mg/dL |
| VLDL | <30 mg/dLa |
| LDL | 120 mg/dL * |
| Cholesterol/HDL Ratio | <3 |
| CRP- hs | <1 |
| Homocysteine | <7 umol/L |
| 1,25 Dihydroxy Vitamin D (D2 + D3 fractionated by LC/MS-MS) | 30-60 pg/mL |
| 1, 25 Dihydroxy Vitamin | 45-80 pg/mL |
Adrenal Hormones
Sex Hormones Women
- Total Testosterone Premenopausal 20- 55 ng/DL
- Total Testosterone Postmenopausal 20-40 ng/DL
- Free Testosterone 3-5 ng/dl
- Progesterone Premenopause Follicular Phase .3 - .9 ng/ml
- Progesesterone Premenopause Luteal Phase: 18-24 ng/ml
- Progesterone Ovulation .3 - 12 ng/ml
- Progesterone Postmenopausal .1-.3 ng/ml
- Estrogen Total: Premenopausal 50-400 ng/ml
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