Cushing's Syndrome
Causes
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Ectopic Cushings
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ACTH producing tumor
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Pituitary produced too much ACTH
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Adrenal gland tumor
Indications
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Increased chloride (> 106 mmol/L)
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0800 Cortisol (>635nmol/L, >23mcg/dL)
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1600 Cortisol (>413nmol/L, >53mcg/dL)
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Fasting glucose (>6.1 mmol/L, >110mg/dL)
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Insulin (>186pmol/L, >26mcU/mL)
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Potassium (<3.5 mmol/L, <3.5mEq/L)
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Thyroxine, total ( <64nmol/L, <5 mcg/dL)
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Thyroxine, free ( <13pmol/L, <1.0 ng/dl)
Supplementary notes
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Ovarian and Adrenal tumors can present w/ elevated T in Women
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Pituitary insufficiency (hypopituitism overlap with Mom's symptoms)