PES Syndrome Presenting as Severe Hyponatremia in an Asymptomatic Septuagenarian

Table 1

Endocrine profile.

Endocrine profile	Serum levels
Adrenocorticotropic hormone (ACTH)	12 pg/ml
Thyroid-stimulating hormone (TSH)	1.46 mcIU/ml
Free T4	0.47 ng/dl
Growth hormone (GH)	<0.1 ng/ml
IGF binding protein 3	0.6 mg/L
Luteinizing hormone (LH)	0.8 IU/ml
Follicle-stimulating hormone (FSH)	1.4 IU/ml
Testosterone	<10 ng/dL
Prolactin	19.4 ng/ml
Baseline serum cortisol	2 mcg/dl
After cosyntropin stimulation test at 30 mins	8 mcg/dl
After cosyntropin stimulation test at 60 mins	9 mcg/dl
Antidiuretic hormone (ADH)	<0.5 pg/ml