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Table 2 Adrenal function test results

From: Tertiary hypothyroidism in a dog

Test

 

Result

Reference range

Initial diagnosis

   

ACTH stimulation test

Pre-ACTH cortisol

163 nmol/L

 
 

Post-ACTH cortisol

968 nmol/L

<450 nmol/L

Low dose dexamethasone suppression test

Basal sample

229 nmol/L

 
 

3 hour sample

155 nmol/L

 
 

8 hour sample

331 nmol/L

< 30 nmol/L

Endogenous ACTH

 

119 pg/mL

20-80 pg/mL

Monitoring therapy

   

ACTH stimulation test (after 5 days induction)

Pre-ACTH cortisol

34.3 nmol/L

 
 

Post-ACTH cortisol

58.2 nmol/L

<120 nmol/L

ACTH stimulation test (1 month)

Pre-ACTH cortisol

<27.59 nmol/L

 
 

Post-ACTH cortisol

67.7 nmol/L

<120 nmol/L

ACTH stimulation test (3 months)

Pre-ACTH cortisol

41.5 nmol/L

 
 

Post-ACTH cortisol

96.4 nmol/L

<120 nmol/L

ACTH stimulation test (7 months)

Pre-ACTH cortisol

53.5 nmol/L

 
 

Post-ACTH cortisol

102 nmol/L

<120 nmol/L