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Hyponatremia in Hypothyroidism - Pathophysiology

- BWH Medicine Chiefs @BrighamChiefs

#Hyponatremia #Hypothyroidism #Pathophysiology #endocrinology
Hyponatremia in ... Hypothyroidism - ... BrighamChiefs #Hyponatremia ... #Hypothyroidism
Hypernatremia Diagnosis and Workup

Step 1 . Repeat the sodium concentration.
Step 2.  Check plasma osmolality.
NORMAL PLASMA
Hypernatremia Diagnosis ... mmol/L - true hyponatremia ... • SIADH • hypothyroidism ... renal failure #Hypernatremia
Modified Hyponatremia Algorithm
Hypertonic Hyponatremia: Hyperglycemia, Mannitol, Urologic irrigants
Hypotonic Hyponatremia: 
 • ADH ON (UOsm > 100):
Modified Hyponatremia ... Algorithm Hypertonic Hyponatremia ... irrigants Hypotonic Hyponatremia ... Medications (diuretics), Hypothyroidism ... SatyaPatelMD #Hyponatremia
Emergencies related to thyroid gland diseases are infrequently observed in the clinical practice. They are caused
Thyroidectomy for hyperthyroidism ... first described hypothyroidism ... patients with severe hypothyroidism ... CriticalCare, #Hypothyroidism ... Thyrotoxicosis #hyperthyroidism
Myoedema on Physical Exam
Myoedema (or "mounding"): A sign of Hypothyroidism, refers to a small lump rising
mounding"): A sign of Hypothyroidism ... not specific for hypothyroidism ... severe cachexia, hyponatremia ... clinical #neurology #hypothyroidism
Hyponatremia - Differential Diagnosis Algorithm
ADH Independent:
 • Tea and Toast Syndrome, Beer Potomania - Low solute
Hyponatremia - Differential ... • Euvolemic - Hypothyroidism ... thecurbsiders #Hyponatremia
Volume Based Approach to Hyponatremia
Hypovolemic, Serum uric acid >4
 • Urine Na <20: Extra-renal losses
 •
Based Approach to Hyponatremia ... acid <4 • SIADH, Hypothyroidism ... SatyaPatelMD #Volume #Hyponatremia
Causes of Hyponatremia - Differential Diagnosis Algorithm
Syndrome of Inappropriate ADH - Euvolemic; no physiologic stimulus to
Causes of Hyponatremia ... Hormonal changes • Hypothyroidism ... osmole intake #Hyponatremia
Causes of Hyponatremia - Differential Diagnosis Algorithm
Syndrome of Inappropriate ADH - Euvolemic; no physiologic stimulus to
Causes of Hyponatremia ... Hormonal changes • Hypothyroidism ... osmole intake #Hyponatremia
Hyponatremia - Differential Algorithm
Isotonic Hyponatremia: Hyperlipidemia, Hyperproteinemia, Recent TURP
Hypotonic Hyponatremia: 
 • Hypovolemia: Diuretics/Nephropathies, Vomiting, Diarrhea,
Hyponatremia - Differential ... Algorithm Isotonic Hyponatremia ... TURP Hypotonic Hyponatremia ... Renal Failure, Hypothyroidism ... Hypertonic Hyponatremia