Endocrine Dynamic Function Test Protocols – paediatric

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Please read all protocols carefully to ensure that the lab is notified before any test which requires urgent analysis of specimens once commenced. If notification of the lab is required, this will be indicated at the start of the protocol.

It is essential that all dynamic function test samples are accompanied with correctly completed request forms which state the test being carried out, the time of each sample and the time of any drug dosage.

The time point from the dynamic function test protocol MUST be indicated on the blood sample tube.

The volume of blood stated in these protocols assumes that there is a normal packed cell volume (PCV). If the child is known to have a high PCV, then please allow for this and send a larger volume of blood.

Some of the blood samples required in these protocols need to arrive at the lab very urgently and on ice. Urgent porter delivery is arranged with Sodexo, who have a list of tests which have a porter response time of 5 min. These are termed ‘Code Blue’ tests. This form of words must be used when contacting the Sodexo helpdesk on x4850. In all cases the requesting clinician must contact the lab before the specimen is sent.

ACTH 15 mins on ice
Calcitonin 5 mins on ice

 

 

Whilst some dynamic function tests may be requested via a specific test name on ICE, not all tests are set up in this way. If a test is being carried out which does not have a ICE test name, please order the analytes individually, indicating in the clinical details which test is being carried out.

Paediatric DFT protocols – Full Document

  • Standard Dose Synacthen Test for suspected adrenal failure
  • Standard Dose Synacthen Test for Congenital Adrenal Hyperplasia
  • Low dose Synacthen Test
  • Low dose Dexamethasone Suppression Test
  • High dose Dexamethasone Suppression Test
  • CRH test
  • Argnine Stimulation Test for Growth Hormone
  • Glucagon Stimulation Test for Growth Hormone
  • Glucagon Stimulation Test for Cortisol and Growth Hormone
  • Combined Test of Anterior Pituitary Function (1): Arginine, TRH, GnRH, Synacthen
  • Combined Test of Anterior Pituitary Function (2): Glucagon, TRH, GnRH, Synacthen
  • Glucose Suppression Test for Growth Hormone
  • IGF-1 Generation Test
  • Water Deprivation Test
  • Hypertonic Saline Infusion
  • TRH Test
  • Pentagastrin Stimulation Test
  • GnRH Test
  • 3 day HCG stimulation test
  • 3 week HCG stimulation test
  • Oral glucose tolerance test
  • Oral glucose tolerance test with insulin
  • 8 hr controlled fast
  • 12 hr controlled fast
  • 16 hr controlled fast
  • 18 hr controlled fast
  • 20 hr controlled fast
  • 24 hr controlled fast
  • Tubular reabsorption of phosphate

 

(Last reviewed November 2018)