Geisinger Medical Laboratories/Geisinger Proven Diagnostics Test Catalog

Test Name: Sunquest Test Code Epic Procedure Code Or ID CPT Code:  

CATECHOL FRACT PLASMA

ORDERING INFORMATION:
Sunquest Test Code:
CATFRA      Geisinger Epic Procedure Code: 82384.01         Geisinger Epic ID: 14851

SPECIMEN COLLECTION
Specimen type:
Plasma
Preferred collection container:
Alternate Collection Container:
3 mL green/black top lithium heparin tube
Specimen required:
4 mL aliquot of plasma; minimum 2.5 mL. Please submit a separate frozen aliquot for this test. It may not be combined with any other test requiring a frozen aliquot.
Special notes:
Collect two green-top tubes. Draw in chilled tubes. Centrifuge immediately. Lavender-top EDTA tube not acceptable.
Patient preparation:
Patient should fast for 12 hours and should avoid alcohol, tobacco, coffee, tea, and strenuous exercise before collection. Patients should be relaxed in either a supine or upright position before blood is drawn. States of anxiety and stress can cause fluctuations in catecholamine levels.

SPECIMEN PROCESSING
Specimen processing instructions:
Separate plasma in a refrigerated centrifuge within 30 minutes of collection. Transfer plasma to clean, plastic, screw-capped vial(s), freeze immediately, and ship frozen. Do not thaw. 
Transport temperature:
Frozen.
Specimen stability:
Room Temperature: 6 hours. Refrigerated: 6 hours. Frozen: 1 month.
Rejection criteria:
Stability limits exceeded. Lavender-top EDTA tube not acceptable.

TEST DETAILS
Reference interval:
Adult Reference Ranges for Catecholamines, Plasma:
Epinephrine, Supine - Less than 50 pg/mL
Epinephrine, Upright - Less than 95 pg/mL
Norepinephrine, Supine - 112-658 pg/mL
Norepinephrine, Upright - 217-1109 pg/mL
Dopamine, Supine - Less than 30 pg/mL
Dopamine, Upright - Less than 30 pg/mL
Total (N+E), Supine - 123- 671 pg/mL
Total (N+E), Upright - 242-1125 pg/mL

Pediatric Reference Ranges for Catecholamines, Plasma
Due to stress, plasma catecholamine levels are generally unreliable in infants and small children. Urinary catecholamine assays are more reliable.
Epinephrine 3-15 yrs, Supine Less than or equal to 464 pg/mL
3-15 yrs, Upright Not available
Norepinephrine 3-15 yrs, Supine Less than
or equal to 1251 pg/mL
3-15 yrs, Upright Not available

Dopamine 3-15 yrs, Supine Less than or equal to 60 pg/mL 3-15 yrs,
Upright Not available

Pediatric data from J Chromatogr 1993; 617:304-307
Detection limits:
Epinephrine 20 pg/mL
Norepinephrine 20 pg/mL
Dopamine 30 pg/mL
CPT code(s):
82384
Note: The billing party has sole responsibility for CPT coding.  Any questions regarding coding should be directed to the payer being billed.  The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only.
Test includes:
Catecholemines, Fractionated, Plasma.
Methodology:
High Performance Liquid Chromatography (HPLC)
Synonyms:
Quest test code 14566

Performing Locations

Quest Diagnostics

Technical Lead: Michael Weaver    
Frequency: Monday, Wednesday & Friday morning    
Performed stat? No
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