Calcium, total — lab reference
In the reference guideCorrect for albumin when appropriate or measure ionized calcium.
THE PURSER WELLNESS ENCYCLOPEDIA
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What’s searchable?Correct for albumin when appropriate or measure ionized calcium.
pH and specimen handling materially affect results.
Fasting, Gilbert syndrome, hemolysis, and liver disease may alter result.
Ask your clinician to review albumin, globulin, and electrophoresis when indicated.
Screening measure, not a stand-alone treatment target.
Affected by thyroid-binding globulin, pregnancy, estrogen, and medications.
Affected by binding proteins and nonthyroidal illness.
Ask your clinician to read this result with iron, transferrin saturation, and ferritin.
No universal wellness target. Ask your clinician to read this result with B12, folate, B6, kidney, thyroid, genetics, and medications.
<10 severe deficiency; 10-19 mild-moderate deficiency. Toxicity assessment requires clinical context.
Morning collection preferred for men. Method and age matter; confirm unexpected low values.
No single normal cutoff fits every patient. Ask your clinician to use age, baseline, trend, prostate size, risk factors, and shared decision-making.
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