19 results
Approach to Thyroid Function Tests in the Evaluation of Hyperthyroidism
 • Low TSH, Low normal T4
Evaluation of Hyperthyroidism ... Possibly Central Hypothyroidism ... → Subclinical Hyperthyroidism ... → Confirm with TRAb ... #algorithm #diagnosis
Volume Based Approach to Hyponatremia
Hypovolemic, Serum uric acid >4
 • Urine Na <20: Extra-renal losses
 •
Volume Based Approach ... acid <4 • SIADH, Hypothyroidism ... SatyaPatelMD #Volume ... #Hyponatremia #algorithm ... #diagnosis #sodium
Hyponatremia - Differential Diagnosis Algorithm
Hypovolemic - Give volume
Hypervolemic (Edematous) - Look for and treat underlying cause
Differential Diagnosis Algorithm ... Hypovolemic - Give volume ... CKD, Thiazides, Hypothyroidism ... Differential #Diagnosis #Algorithm ... diagnosis #nephrology #sodium
Hypernatremia Diagnosis and Workup

Step 1 . Repeat the sodium concentration.
Step 2.  Check plasma osmolality.
NORMAL PLASMA
Repeat the sodium ... Assess volume status ... • extra-renal volume ... • SIADH • hypothyroidism ... Diagnosis #Workup #Algorithm
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
algorithm Urine ... poor response to volume ... : SIADH, Renal Sodium ... or low Uosm), Hypothyroidism ... diagnosis #table #sodium
Hyperthyroidism (low TSH, High T4/T3) - Diagnostic Algorithm

Radioactive iodine scan – get if concern for nodular
Hyperthyroidism ... ) - Diagnostic Algorithm ... Graves disease – TRAB ... #Hyperthyroidism ... Hyperthyroid #Diagnosis #Algorithm
True Hyponatremia Differential Algorithm

Instead (or in addition) of volume status examination, check urine sodium and serum
Hyponatremia Differential Algorithm ... in addition) of volume ... examination, check urine sodium ... acid: - Urine sodium ... #Differential #Algorithm
Modified Hyponatremia Algorithm
Hypertonic Hyponatremia: Hyperglycemia, Mannitol, Urologic irrigants
Hypotonic Hyponatremia: 
 • ADH ON (UOsm > 100):
Modified Hyponatremia Algorithm ... Medications (diuretics), Hypothyroidism ... polydipsia, Low solute ... #Hyponatremia #Algorithm ... #diagnosis #sodium
Hyponatremia - Differential Diagnosis by Mechanism
Decr Blood Pressure (“Decr Effective Circulating Volume”) 
 - Volume depletion
Effective Circulating Volume ... ”) - Volume depletion ... Endocrinopathies - Hypothyroidism ... Table #Causes #Sodium
Causes of Anemia by Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Low Mean Corpuscular Volume (<80
Mean Corpuscular Volume ... Differential Diagnosis Algorithm ... Mean Corpuscular Volume ... Liver Disease • Hypothyroidism ... Differential #Diagnosis #Algorithm