Serum iron — lab reference
Some search terms matchedMorning fasting collection is preferred when practical. Day-to-day variation is substantial.
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What’s searchable?Morning fasting collection is preferred when practical. Day-to-day variation is substantial.
Interpret with iron, transferrin saturation, and ferritin.
Negative acute-phase reactant; affected by liver function and nutrition.
Calculated from iron and TIBC. Fasting and timing improve consistency.
Acute-phase reactant. Menstruation, menopause, inflammation, liver disease, and iron therapy matter.
<150 supports deficiency; 150-400 is often treated as borderline and may warrant MMA/homocysteine review.
<4.0 suggests deficiency. Recent intake or supplementation may raise serum values.
More specific for cellular B12 deficiency; kidney impairment can elevate.
No universal wellness target. Interpret with B12, folate, B6, kidney, thyroid, genetics, and medications.
Acute-phase reactant; used in hemolysis evaluation with LDH, bilirubin, and reticulocytes.
Can help distinguish iron deficiency from inflammation; use performing-lab interval.
Interpret relative to hemoglobin, oxygenation, and kidney function.
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