Hypothalamic and Pituitary Hormones, Excess and Deficiencies

Pituitary Adenoma: PIT 1 excess check

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Adrenal Incidentaloma: 1,17,24, A/R K

1mg Dexamethasone Suppression Test

17 OH Ketosteroids

24hr Urine Catecholamines

A/R=Angiotensin /Renin ratio

Potassium

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Negative Feed back mechanism at Pituitary Level:

DoProGon

Dopamine-_->Prolactin-_->Gonadotrophic Releasing Hormone

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Positive Feedback mechanism:

HoPGal

Hypothyroidism-+->Prolactin-+–>Galactorrhea