1,25-dihydroxyvitamin D — lab reference
Some search terms matchedNot a routine vitamin D status test. Interpret with calcium, phosphorus, kidney function, and PTH.
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What’s searchable?Not a routine vitamin D status test. Interpret with calcium, phosphorus, kidney function, and PTH.
Reagent-specific. Interpret with INR, liver function, vitamin K, and anticoagulants.
Interpret with calcium, phosphorus, magnesium, vitamin D, and kidney function.
Specify whole blood, RBC, plasma, or intracellular method. Preanalytic handling is critical.
RBC, plasma, and cellular assays are not interchangeable.
Urine/plasma method, creatinine correction, collection timing, and assay matter.
Urine/plasma and mass-spec/immunoassay results are not interchangeable.
Supports amino-acid metabolism, neurotransmitter production and hemoglobin synthesis.
Lab-specific. Interpret with symptoms, medication effects, and differential.
Altitude, smoking, hydration, androgen therapy, and pregnancy may shift values.
Consider altitude and iron/B12/folate status. Pregnancy requires trimester-specific ranges.
Hydration and altitude are major modifiers. Review alongside hemoglobin and RBC indices.
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