EpistemisUnexplained persistent fatigue
Specialty: General.
Why it occurs
- Subclinical major depressive disorder or long-standing dysthymia (where fatigue and lack of physical motivation are the only obvious physical manifestations)
- Marginal micronutrient deficiency not detected in routine studies (low tissue iron without frank anemia, mild folate or vitamin D deficiency)
- Atypical persistent viral infections (human herpesvirus type 6, parvovirus B19 or Epstein-Barr virus with subclinical reactivations)
- Mild obstructive sleep apnea with microawakenings without overt snoring (upper airway resistance syndrome)
- Chronic exposure to low-level environmental toxins at home or work (carbon monoxide due to poor combustion, toxic mold).
Initial workup
CBC with peripheral blood smear, acute phase reactants (ESR, CRP), complete iron profile (serum iron, ferritin, transferrin, transferrin saturation index), thyroid profile, antinuclear antibodies (ANA), and 24-hour urine study for protein and sedimentation.
red flags
Progressive involuntary weight loss of more than 5 kg in three months, recurrent nocturnal fever, diaphoresis that wets the bedding, appearance of fixed cervical, axillary or inguinal lymphadenopathy, or unexplained mucosal hemorrhages.
Standard management
- Folate — 5 mg orally daily if marginal deficiency is confirmed
- Paracetamol — 500 mg orally if fatigue is accompanied by diffuse muscle pain that interferes with daily activity
- Supplements with Ginseng or Eleutherococcus extract (under medical supervision, to adaptogenously modulate the general body energy level).
Educational guidance for study. It is NOT a prescription recommendation. The actual choice depends on the cause, the patient, and current guidelines.
- Area
- General
- Listed causes
- 5
- Treatment options
- 3