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Old 10-08-2012
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Thyroid Hypothyroidism sodium levels ?

Hypothyroidism is associated with 'hyponatremia' .

According to goljian , hypothyroidism is associated with 'salt and water retention' .

Can someone explain how there is salt retention and low blood Na levels at the same time ?
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Old 10-08-2012
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maybe it's a dilutional hyponatremia? there's a water retention which produces hyponatremia which causes reflex Na retention which turns out to be insufficient to overcome this hyponatremia. just a thought...
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Old 10-09-2012
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Yes casandra , i finally found hypothyroidism to be listed as one of the causes of hypotonic fluid disorders.

Thanks for your input
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Old 02-13-2013
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Default Thyroid and Renal Function

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Originally Posted by hope007 View Post
Hypothyroidism is associated with 'hyponatremia' .

According to goljian , hypothyroidism is associated with 'salt and water retention' .

Can someone explain how there is salt retention and low blood Na levels at the same time ?

Low thyroid hormone levels decreases GFR as a result of decreased blood flow to the kidneys. Hyperthyroid states are associated with increases in cardiac output causing an increase in renal blood flow in addition to a decrease in the resistance of renal vasculature. For this reason, we see fluid shifts due to thyroid hormone

While I have not seen it characterized, it is highly possible that thyroid hormone also increases the JGA to Beta 1 adrenergic stimulation (thereby increasing Renin, Angiotensin 1, and Angiotensin 2). This would further increase blood volume by working at the kidney to retain Na+ and H2O
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Electrolytes-, Endocrine-, Pathology-

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