9 results
Hypernatremia Diagnosis and Workup

Step 1 . Repeat the sodium concentration.
Step 2.  Check plasma osmolality.
NORMAL PLASMA
1 . ... Repeat the sodium ... administration Step 3. ... EUVOLEMIC • SIADH ... #Algorithm #Nephrology
Cerebral Salt Wasting vs SIADH - Pathophysiology 
1) Neurological event
2) Sodium loss from tubules
3) Naturiesis →
Pathophysiology 1) ... from tubules 3) ... Pathophysiology #diagnosis #nephrology ... #hyponatremia # ... comparison
Hyponatremia Differential Diagnosis Algorithm - Utilizing Uric Acid 
ADH promotes Urea/uric acid excretion along with water
water retention 1) ... Urine Osmolarity 3) ... Urine Sodium 4) ... Low Uric Acid → SIADH ... Diagnosis #Algorithm #nephrology
Hypernatremia Differential Diagnosis Algorithm - Diabetes Insipidus Workup

Step #1 - Consider the history
Step #2 - Assess
Diabetes Insipidus Workup ... Step #1 - Consider ... Uglucose Step #3 ... Management #Algorithm #Sodium ... #nephrology #insipidus
Hypernatremia - Differential Diagnosis Workup Algorithm

1) Check Urine Osmolality:
 > 600 mOsm/kg - Implies extrarenal mechanism
Differential Diagnosis Workup ... Algorithm 1) ... insipidus (central or nephrogenic ... #Algorithm #nephrology ... #sodium
Hypernatremia - Differential Diagnosis and Treatment
Hypernatremia is almost always due to unreplaced water loss (free water
post-obstructive 3) ... Diabetes Insipidus: neurogenic ... ([Na] / 140) - 1) ... Treatment #management #nephrology ... #sodium
SIADH Treatment Options
1. Treat underlying cause of SIADH: Pain, Primary lung pathology, Post-operative phenomenon, Medications, Basically
Options 1. ... hospitalization) 3. ... promoting passive sodium ... #Management #hyponatremia ... #nephrology #treatment
DDAVP Clamp Protocol in Hyponatremia
 • Stop any maintenance fluids.
 • Start DDAVP 2 mcg IV
DDAVP Clamp Protocol ... in Hyponatremia ... NaCl (1-1.5 ml/ ... 125-130 #DDAVP #Clamp ... #management #nephrology
Hyponatremia - Diagnosis and Treatment
Hyponatremia is usually caused by the inability to excrete water normally.
Then, ask 3 questions ... to work through ... 1) Is it hypotonic ... Treatment #management #nephrology ... #sodium