🔋 Chronic Fatigue Workup

For everyone · 12 markers · $211.50 with code CAMERON $235.00

Persistently exhausted despite adequate sleep, and either haven't been tested or were told everything is normal.

🩸 Order this exact panel — 10% off

All 12 markers load into your cart in one click. No doctor's visit, drawn at any Quest location in the US, results by email in about two weeks. Code CAMERON applies automatically.

Add all 12 markers — $211.50 → Open the full Bloodwork Vault →

Why this panel

Fatigue has a small number of very common medical causes and they're all cheap to test for. This panel covers them systematically rather than one at a time across months of appointments.

💡 What most people missSerum B12 is a poor test, and methylmalonic acid is the one that actually answers the question. You can have a serum B12 of 400 — comfortably 'normal' — and still be functionally deficient at the tissue level. MMA accumulates when B12 is genuinely insufficient inside cells, which makes it the confirmatory test. This matters enormously for anyone plant-based, over 60, on metformin, or on a PPI, all of whom are at high risk and routinely reassured by a normal serum B12. The second high-yield finding is ferritin under 30, which causes profound fatigue with a completely normal blood count.
⏰ When to get it drawnMorning, fasted. Cortisol must be drawn before 9am. Off biotin 72 hours.

The 12 markers — and why each one is here

Complete Blood Count (CBC) w/ Differential $9.00
Anemia, infection, and NLR as a free inflammation marker
Ferritin $9.00
Under 30 causes real fatigue with a normal CBC
Iron Panel (Iron, TIBC, UIBC, Sat%) $9.50
Confirms the ferritin
TSH (Thyroid-Stimulating Hormone) $9.00
The most common endocrine cause
Free T3 (Free Triiodothyronine) $20.00
Catches poor conversion that TSH alone misses
Vitamin B12 $19.00
Necessary but not sufficient — see MMA
Methylmalonic Acid (MMA) $80.00
Catches functional B12 deficiency when serum B12 reads normal
Vitamin D (25-Hydroxy) $20.00
Deficiency is extremely common and genuinely symptomatic
Magnesium, RBC $20.00
RBC magnesium reflects tissue stores; serum magnesium is nearly useless
Comprehensive Metabolic Panel (CMP) $9.00
Liver, kidney, electrolytes, glucose
hs-CRP (C-Reactive Protein, High Sensitivity) $18.50
Occult inflammation
Cortisol $12.00
Adrenal insufficiency is rare but serious. Morning draw only
✓ How to read the resultsWork through it in order: iron, thyroid, B12/MMA, vitamin D, glucose, inflammation. If every one is genuinely optimal — not merely 'in range' — then sleep apnea, depression and chronic fatigue syndrome move up the list, and those need clinical assessment rather than more bloods.
🔒 The Chronic Fatigue protocol is inside the Academy

Ordering the panel tells you your numbers. The protocol tells you what to do with them — the six causes that account for most fatigue, the ferritin threshold that actually predicts benefit, and why most energy supplements do nothing if you're not deficient.

Join the Academy — $10/mo →

Related panels

🩸 Iron Deficiency Without Anemia🦋 Thyroid Deep Dive🧠 Brain Fog & Cognition😴 Sleep Quality & Recovery

Frequently asked questions

What blood tests are in the Chronic Fatigue Workup panel?

12 markers: Complete Blood Count (CBC) w/ Differential, Ferritin, Iron Panel (Iron, TIBC, UIBC, Sat%), TSH (Thyroid-Stimulating Hormone), Free T3 (Free Triiodothyronine), Vitamin B12, Methylmalonic Acid (MMA), Vitamin D (25-Hydroxy), Magnesium, RBC, Comprehensive Metabolic Panel (CMP), hs-CRP (C-Reactive Protein, High Sensitivity), Cortisol.

How much does the Chronic Fatigue Workup panel cost?

$235.00 before discount, $211.50 with code CAMERON applied automatically. Individual markers add a one-time $10 draw fee. Ordered through Marek Diagnostics and drawn at any Quest Diagnostics location in the US.

Do I need a doctor's order for these tests?

No. These are ordered direct-to-consumer through Marek Diagnostics — you order online, walk into a Quest location, and results are emailed to you in about two weeks. No physician visit or insurance required. Not available in NY, NJ or RI.

When should I get the Chronic Fatigue Workup panel drawn?

Morning, fasted. Cortisol must be drawn before 9am. Off biotin 72 hours.

How do I interpret Chronic Fatigue Workup results?

Work through it in order: iron, thyroid, B12/MMA, vitamin D, glucose, inflammation. If every one is genuinely optimal — not merely 'in range' — then sleep apnea, depression and chronic fatigue syndrome move up the list, and those need clinical assessment rather than more bloods.

Important: This page is education only, not medical advice and not a diagnosis. A panel is a starting point for a conversation with a clinician, not a substitute for one. Reference ranges vary by laboratory and assay — always compare against the range printed on your own report.