Lab Checklist Builder
Select your profile and priority level, check the tests you want, then generate a print-ready checklist for your doctor.
Patient Info (optional — printed on checklist)
20 of 22 tests selected
Shared — GLP-1 Monitoring
Metabolic & Organ Function
CMP — Comprehensive Metabolic Panel
Kidney function, liver enzymes, electrolytes, glucose. Rapid weight loss can stress the liver; dehydration from GI side effects can impact kidneys.
CBC — Complete Blood Count
Screens for anemia and overall blood health. Significant weight loss can affect red blood cell production.
HbA1c — Hemoglobin A1c
Blood sugar control marker. Should improve significantly with weight loss — good to document progress.
Fasting Glucose & Insulin
Assesses insulin resistance improvement alongside A1c.
Lipid Panel
Cholesterol and triglycerides — often improve dramatically with weight loss. Important baseline to document.
Lipase
Screens for pancreatitis — rare but a known risk with GLP-1/GIP class drugs. Important to have on file.
Thyroid
TSH — Thyroid Stimulating Hormone
Thyroid dysfunction causes low libido, fatigue, and weight issues. Standard monitoring on tirzepatide.
Free T3 & Free T4
More complete thyroid picture — TSH alone can miss subclinical dysfunction.
Nutrition
Vitamin D (25-OH)
Commonly deficient. Directly correlates with testosterone, libido, mood, and bone density. Critical after caloric restriction.
B12 & Folate
GLP-1 drugs reduce food intake — deficiency can mimic fatigue and low libido.
Magnesium
Often depleted with reduced food intake. Affects energy, sleep, and muscle function.
Uric Acid
Rapid fat breakdown can temporarily elevate uric acid. Worth checking if any joint pain.
Male Hormone Panel
Core Testosterone
Total Testosterone
Draw before noon. Under 300 ng/dL = clinically low per AUA. Optimal range 500–1000 ng/dL.
Free Testosterone
The bioavailable fraction — often more relevant than total. Can be low even when total T looks normal.
SHBG — Sex Hormone Binding Globulin
High SHBG reduces free T. Rapid weight loss can shift SHBG levels significantly.
Albumin
Used to calculate bioavailable testosterone. Usually included in CMP — confirm it is.
Pituitary Axis
LH — Luteinizing Hormone
Tells you if low T is from the testes (high LH) or pituitary/brain (low LH). Critical for diagnosis.
FSH — Follicle Stimulating Hormone
Complements LH to assess the pituitary-testicular axis.
Prolactin
Elevated prolactin suppresses testosterone and libido. Can indicate pituitary adenoma if high.
Estrogen & Adrenal
Estradiol (E2)
Fat cells convert T to estrogen — weight loss changes this. Both high and low E2 cause libido issues in men.
DHEA-S
Adrenal precursor to testosterone. Often declines with age. Low levels = fatigue and low libido.
Morning Cortisol
High cortisol suppresses the entire hormonal axis. Draw at same time as testosterone.