Davis's Lab & Diagnostic Tests

Catecholamines, Blood and Urine

Catecholamines, Blood and Urine is a topic covered in the Davis's Lab & Diagnostic Tests.

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Epinephrine, norepinephrine, dopamine.

Common Use:
To assist in diagnosing catecholamine-secreting tumors, such as those found in the adrenal medulla, and in the investigation of hypertension. The urine test is used to assist in diagnosing pheochromocytoma and as a work-up of neuroblastoma.

Plasma collected in green-top (heparin) tube. Urine from a timed specimen collected in a clean, plastic, amber collection container with 6N hydrochloric acid as a preservative.

Normal Findings:
(Method: High-performance liquid chromatography)

BloodConventional UnitsSI Units
(Conventional Units × 5.46)
 Newborn–1 yr0–34 pg/mL0–186 pmol/L
 1–18 yr0–80 pg/mL0–437 pmol/L
  Supine, 30 min0–110 pg/mL0–600 pmol/L
  Standing, 30 min0–140 pg/mL0–764 pmol/L
(Conventional Units × 5.91)
 Newborn–1 yr0–659 pg/mL0–3,895 pmol/L
 1–18 yr0–611 pg/mL0–3,611 pmol/L
  Supine, 30 min70–750 pg/mL414–4,432 pmol/L
  Standing, 30 min200–1,700 pg/mL1,182–10,047 pmol/L
(Conventional Units × 6.53)
 Newborn–1 yr0–42 pg/mL0–274 pmol/L
 1–18 yr0–32 pg/mL0–209 pmol/L
  Supine or standing0–48 pg/mL0–313 pmol/L
UrineConventional UnitsSI Units
(Conventional Units × 5.46)
 Newborn–9 yr0–11 mcg/24 hr0–60 nmol/24 hr
 10–19 yr0–18 mcg/24 hr0–98 nmol/24 hr
 20 yr–older adult0–20 mcg/24 hr0–109 nmol/24 hr
(Conventional Units × 5.91)
 Newborn–9 yr0–59 mcg/24 hr0–349 nmol/24 hr
 10–19 yr0–90 mcg/24 hr0–532 nmol/24 hr
 20 yr–older adult0–135 mcg/24 hr0–798 nmol/24 hr
(Conventional Units × 6.53)
 Newborn–9 yr0–414 mcg/24 hr0–2,703 nmol/24 hr
 10–19 yr0–575 mcg/24 hr0–3,755 nmol/24 hr
 20 yr–older adult0–510 mcg/24 hr0–3,330 nmol/24 hr

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