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Epic Code LAB1230537 Growth Hormone, Panel (Timed Study)

Important Note

This is a study ordered by endocrinologists and involves stimulation testing by the provider.

Fasting specimen required.

Test Name Alias

hGH | Somatotrophic Hormone | 6685

 

Interface Order Alias

Not available

 

Panel Information

Growth Hormone Baseline

Growth Hormone 30 Min post Baseline

Growth Hormone 60 Min post Baseline

Growth Hormone 90 Min post Baseline

Growth Hormone 120 Min post Baseline

Growth Hormone 150 Min post Baseline

Growth Hormone 180 Min post Baseline

Growth Hormone 240 Min post Baseline

 

Collection Instructions

Specimen Collection: Blood

Container(s): Gold Top (Serum Separator-SST Gel) or Red Top (Plain, No additive) or Mint Green Top (Lithium Heparin Gel)

  • Preferred Volume to Collect: 5.0 mL
  • Minimum Volume to Collect: 2.0 mL
  • Neonate Volume to Collect: 0.5 mL
  • Capillary collect ok: Yes
  • Microtainer acceptable: Yes

 

Collection Instructions:

  • Patient must be fasting.
  • Gold/Red tube: Gently invert 8 –  10 times to mix clot activator with blood.
  • Mint Green tube: Gently invert 8 – 10 times to mix lithium heparin anticoagulant with blood.
  • Specimen should be processed as soon as possible - See processing instructions

 

Processing Instructions (Laboratory, Outpatient or Off-site collection)

 

Processed Specimen: Serum/Plasma

Centrifuge/Spin: Yes

Aliquot: Yes

Processing Instructions:

  • Serum is preferred specimen type.
  • Gold Tube/Serum: Allow blood to clot for 30 minutes in a vertical position and centrifuge within 2 hours. Pour over specimen in aliquot tube and freeze immediately (before transport).
  • Green Tube/Plasma: Centrifuge after collection. Pour over specimen in aliquot tube and freeze immediately (before transport).

Transport Temperature: Frozen

 

Rejection Criteria

  • Specimen not centrifuged promptly after collection.
  • Centrifuged serum not meeting specimen stability requirements.

 

Specimen Stability

Serum/Plasma

  • Ambient:  8 hours
  • Refrigerated:  24 hours
  • Frozen:  28 days
  • Laboratory Retention:  7 days

Test Frequency

Available Monday - Friday, usual TAT 1 - 3 days.

 

Reference Range

 <5.0 ng/ml

 

Growth hormone has a short halflife and is secreted in an episodic manner.  Consequently, a single random value may not be adequate for evaluating growth hormone adequacy.

 

Performing Department

Immunochemistry

Performing Department Laboratory Location

Corewell Health Reference Laboratory, Grand Rapids, MI

 

Methodology

Chemiluminescence

 

Epic Test ID

1230102150, 1230102151, 1230102152, 1230102153, 1230102154, 1230102155, 1230102156, 1230102157

LOINC

Growth Hormone 2963-7

Growth Hormone Baseline  12253-1

Growth Hormone 30 Min post Baseline  15347-8

Growth Hormone 60 Min post Baseline  12685-4

Growth Hormone 90 Min post Baseline  12686-2

Growth Hormone 120 Min post Baseline  12687-0

Growth Hormone 150 Min post Baseline  12688-8

Growth Hormone 180 Min post Baseline  12689-6

Growth Hormone 240 Min post Baseline  12690-4

 

Mayo Access Code

Not available

 

Reviewed Date

12/13/2022