37 results
General approach to AKI - Checklist

Urine electrolytes & FENa - Previously, it was believed that urine
believed that urine sodium ... fractional excretion of sodium ... differentiate between pre-renal ... and intrinsic renal ... This has poor performance
Hyponatremia Differential Diagnosis Algorithm - Utilizing Uric Acid 
ADH promotes Urea/uric acid excretion along with water
Differential Diagnosis Algorithm ... Osmolarity 3) Urine Sodium ... High Uric Acid → renal ... salt wasting By ... #nephrology #sodium
Modified Hyponatremia Algorithm
Hypertonic Hyponatremia: Hyperglycemia, Mannitol, Urologic irrigants
Hypotonic Hyponatremia: 
 • ADH ON (UOsm > 100):
Modified Hyponatremia Algorithm ... Hypothyroidism, Adrenal ... Cerebral salt wasting ... #Hyponatremia #Algorithm ... #diagnosis #sodium
Cushing Syndrome Testing Algorithm
INDICATIONS FOR TESTING:
 • Suspected Cushing syndrome (central obesity, muscle weakness, refractory hypertension)
Testing:
Algorithm INDICATIONS ... FOR TESTING: • ... Hormone • MRI of adrenal ... Syndrome #diagnosis #algorithm ... endocrinology #Adrenal
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
normal volume-based algorithm ... Sodium loss (diuretics ... Hypothyroidism, Adrenal ... Cerebral Salt Wasting ... diagnosis #table #sodium
Adrenal Insufficiency Algorithm - Cosyntropin Stimulation Test
T-1m: Baseline cortisol drawn
T0: 250 µg cosyntropin given IV
T30m: Repeat
Adrenal Insufficiency ... Algorithm - Cosyntropin ... BCM_InternalMed #Adrenal ... Insufficiency #Testing ... #Algorithm #Cosyntropin
Hypernatremia Diagnosis and Workup

Step 1 . Repeat the sodium concentration.
Step 2.  Check plasma osmolality.
NORMAL PLASMA
Repeat the sodium ... HYPOVOLEMIC • extra-renal ... - fevers • renal ... hypothyroidism • adrenal ... Diagnosis #Workup #Algorithm
Hyponatremia - Differential Diagnosis by Mechanism
Decr Blood Pressure (“Decr Effective Circulating Volume”) 
 - Volume depletion
Cerebral salt wasting ... Hypothyroidism - Adrenal ... Suppressed - Advanced renal ... Table #Causes #Sodium
Adrenal Insufficiency Differential Diagnosis Algorithm
Clinical suspicion: Weakness, fatigue, nausea, musculoskeletal pain, dizziness, volume depletion, abdominal pain,
Adrenal Insufficiency ... Differential Diagnosis Algorithm ... , hypoglycemia Testing ... ACTH - Primary adrenal ... Differential #Diagnosis #Algorithm
Adrenal Insufficiency Diagnosis Algorithm - Evaluation of HPA Axis Response to ACTH

Early am cortisol < 3
Adrenal Insufficiency ... Diagnosis Algorithm ... then go to stim testing ... indicates normal adrenal ... Insufficiency #Diagnosis #Algorithm