Table 5:
Diagnostic Tests for Pituitary Hormone Deficiency
Axis
Tests
Growth hormone IGF-1, ITT, GH-RH/arginine, arginine
Adrenocorticotropic hormone Cortisol (morning), LDCT, SDCT, overnight metyrapone test, ITT
Gonadotropins (LH and FSH) Estradiol (free and total testosterone in men), FSH, LH, prolactin
Thyroid-stimulating hormone FT4 index (free T4), TSH
FSH = Follicle-stimulating hormone; FT4 = Thyroxine; GH-RH = Growth hormone-releasing hormone; IGF-1 = Insulin-like growth factor-1; ITT = Insulin tolerance test; LDCT = Low-dose cosyntropin test; LH = Luteinizing hormone; SDCT = Standard-dose cosyntropin test; TSH = Thyroid-stimulating hormone
Copyright 2002 The Cleveland Clinic Foundation

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