Let’s explore “Total cholesterol — lab reference”

<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. Use age, baseline, trend, prostate size, risk factors, and shared decision-making.

Often used when total PSA is in an indeterminate zone. Use the performing-lab risk table.

Depends on total testosterone, SHBG, albumin, calculation, and assay.

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.

Macrocytosis and microcytosis require cause-specific interpretation.

Analyzer-specific. Review with MCV and MCHC.

Analyzer-specific; hemolysis and cold agglutinins may interfere.