28 results
Causes of Hyponatremia - Differential Diagnosis Algorithm
Syndrome of Inappropriate ADH - Euvolemic; no physiologic stimulus to
Causes of Hyponatremia ... • Reduced GFR, AKI ... suppression • Primary ... #Nephrology #Differential ... #Causes
Causes of Hyponatremia - Differential Diagnosis Algorithm
Syndrome of Inappropriate ADH - Euvolemic; no physiologic stimulus to
Causes of Hyponatremia ... • Reduced GFR, AKI ... suppression • Primary ... #Nephrology #Differential ... #Causes
Adrenal Insufficiency Diagnosis Algorithm - Evaluation of HPA Axis Response to ACTH

Early am cortisol < 3
Adrenal Insufficiency ... OR secondary AI ... or secondary AI ... or tertiary AI ... #Adrenal #Insufficiency
Causes of Adrenal Insufficiency - Differential Diagnosis Algorithm
ACTH-Dependent (Secondary):
 • Pituitary Dysfunction
 • Hypothalamic Dysfunction
ACTH-Independent (Primary):
Causes of Adrenal ... ACTH-Independent (Primary ... Polyglandular Autoimmune Syndrome ... #AI #Differential ... #Causes #endocrinology
Primary Adrenal Insufficiency
Addison's Disease - Damage of the adrenal glands with lack of cortisol, androgens and
Primary Adrenal ... of Adrenal Insufficiency ... AI present - ... AI present - ... #adrenal #insufficiency
Adrenal Insufficiency - Diagnosis and Management Summary
Primary Adrenal Insufficiency:
Most Common Cause in the US: Autoimmune Adrenalitis
Other
Adrenal Insufficiency ... Adrenal Insufficiency ... In secondary AI ... Adrenal Insufficiency ... diagnostic of AI
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
normal volume-based algorithm ... Hypothyroidism, Adrenal ... Insufficiency, ... water intake (Primary ... #nephrology
Modified Hyponatremia Algorithm
Hypertonic Hyponatremia: Hyperglycemia, Mannitol, Urologic irrigants
Hypotonic Hyponatremia: 
 • ADH ON (UOsm > 100):
Cirrhosis, Nephrotic syndrome ... Hypothyroidism, Adrenal ... insufficiency, ... (UOsm < 100): Primary ... #sodium #nephrology
Hypernatremia Diagnosis and Workup

Step 1 . Repeat the sodium concentration.
Step 2.  Check plasma osmolality.
NORMAL PLASMA
Repeat the sodium ... hypothyroidism • adrenal ... insufficiency ... • nephrotic syndrome ... #Nephrology
Adrenal Insufficiency Differential Diagnosis Algorithm
Clinical suspicion: Weakness, fatigue, nausea, musculoskeletal pain, dizziness, volume depletion, abdominal pain,
Adrenal Insufficiency ... , hypotension, hyponatremia ... baseline ACTH - Primary ... adrenal insufficiency ... #endocrinology