Last Modified:
2/14/2024 2:09:36 PM
Medical Necessity Documentation:
Client Notes:
Patient Preparation:
Overnight fasting is required. Patient should avoid alcohol, coffee, tea, tobacco and strenuous exercise prior to collection
Specimen Requirements:
(2) 4.0 mL Plasma from a Green Top Tubes - Na Heparin in a Plastic Vial
Collection Instructions:
- Centrifuge with 30 minutes of collection
- Separate plasma and transfer to clean, plastic, screw-capped vials
- One vial per parent tube.
- Freeze immediately at -20°
Minimum Volume:
2.5 mL Plasma
Transport & Storage: Temperature/Stability:
6 hours Ambient
6 hours Refrigerated
30 days Frozen
Reference Range:
| |
Supine |
|
Upright |
|
| Adults |
112-658 |
pg/mL |
217-1109 |
pg/mL |
| 13-15 Years |
≤1251 |
pg/mL |
Not available |
Critical Ranges:
Test Comments:
Limitations: False-positive results have been observed in patients with either chronic kidney disease and hypertension.
Methodology:
High Performance Liquid Chromatography (HPLC) • Electrochemical Detection
Clinical Significance:
Plasma norepinephrine is an independent risk factor in patients with chronic congestive heart failure that relates to subsequent mortality. Norepinephrine is useful in evaluating patients with hypertension.
Documentation:
Due to stress, plasma catecholamine levels are generally unreliable in infants and small children. Urinary catecholamine assays are more reliable.
Custom Panel:
No
PRODUCTION SCHEDULE
Turn Around Time:
4 to 7 days
Days Performed:
Monday, Tuesday, Wednesday, Thursday, Friday
Sites Performed:
Quest - Chantilly to San Juan Capistrano
PHL Test Code:
MSOT
EPIC Test Code:
MISC
Send Out Test Code:
37562
Alternate Test Names:
Norepinephrine, Plasma
Included Tests:
CPT Coding:
82542
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