Quest Diagnostics Fatigue Test Panel
Type
Blood Testing
Biomarkers
3
Duration
30 min
Results
3 days
This test evaluates health factors that can contribute to extreme tiredness or chronic fatigue.
Many people in the United States claim how tired they feel every single day. Some of these people may be suffering from chronic fatigue as a result of myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) or other diagnosable conditions. Chronic fatigue may present differently from person to person but can affect the quality of one’s life and general health. There are measurable factors in the body that can contribute to extreme tiredness and present as the underlying cause for fatigue. These measurable factors make up the Fatigue Test Panel: Complete Blood Count (CBC), Comprehensive Metabolic Panel (CMP), Hemoglobin A1c (HbA1c), Ferritin, and Thyroid Stimulating Hormone (TSH) with reflex to Free T4 (FT4).
Key Details
- Sample Type
- Blood draw
- Turnaround
- 1–5 business days
- Common Use
- Targeted health screening
Who Is This For?
Anyone wanting to check specific health markers. People monitoring known conditions or treatment effectiveness. Those who want targeted testing rather than a comprehensive panel. Individuals following up on previous abnormal results or investigating specific symptoms.
What's Included
Preparation Required
Fasting for 10–12 hours before your appointment is recommended for accurate results (water is fine). Avoid alcohol for 24 hours and intense exercise for 12 hours before the blood draw. Morning appointments are ideal for consistent hormone and glucose readings. The blood draw typically takes 5–10 minutes.
Biomarkers Tested
3Reflects your average blood sugar over the past 2–3 months by measuring the percentage of hemoglobin with attached glucose. HbA1c is the gold standard for diagnosing and monitoring diabetes, unaffected by daily fluctuations.
The primary iron storage protein. Ferritin reflects total body iron stores and is the first marker to drop in iron deficiency. However, ferritin also rises with inflammation, infection, and liver disease, which can mask true iron deficiency.
The unbound, active form of the main thyroid hormone T4. Free T4 directly reflects thyroid gland output and is used alongside TSH to diagnose and monitor thyroid disorders.
Includes a $6.00 Physician Service Fee; Klarna/Affirm payment options available
- Category
- Diagnostic
- Sample Type
- Blood draw
- Duration
- 30 min
- Results
- 3 days