20 results
Hyponatremia Differential Diagnosis Algorithm - Utilizing Uric Acid 
ADH promotes Urea/uric acid excretion along with water
Hyponatremia Differential ... 2) Urine Osmolarity ... 3) Urine Sodium ... Low Uric Acid → SIADH ... Diagnosis #Algorithm #nephrology
Hypernatremia Diagnosis and Workup

Step 1 . Repeat the sodium concentration.
Step 2.  Check plasma osmolality.
NORMAL PLASMA
and Workup Step ... Repeat the sodium ... EUVOLEMIC • SIADH ... #Diagnosis #Workup ... #Algorithm #Nephrology
Causes of Hypernatremia - Differential Diagnosis Algorithm
Hypernatremia - Excess free water loss, Serum Sodium >145 mmol/L
High
Causes of Hypernatremia ... - Differential ... water loss, Serum Sodium ... Osmolality > 300 ... #Nephrology #Differential
Hypernatremia - Differential Diagnosis Workup Algorithm

1) Check Urine Osmolality:
 > 600 mOsm/kg - Implies extrarenal mechanism
Workup Algorithm ... 1) Check Urine ... Osmolality: > ... #Algorithm #nephrology ... #sodium
Hyponatremia Diagnostic Algorithm
1) Check serum osmolality
2) Check urine osmolality
3) ADH Dependent - Check volume status, urine
2) Check urine ... osmolality 3) ADH ... sodium, uric acid ... Diagnosis #Algorithm #differential ... nephrology
Hyponatremia (<135 mEq/L) is a common electrolyte abnormality caused by an excess of total body water
, urine sodium concentration ... and urine osmolality ... helps to differentiate ... Measured urine sodium ... EBV #potomania #SIADH
Hyponatremia - Differential Diagnosis Algorithm
Hypovolemic - Give volume
Hypervolemic (Edematous) - Look for and treat underlying cause
Hyponatremia - Differential ... treat underlying cause ... Pulmonary Diseases ... , SSRIs) - SIADH ... #sodium
A lazy man's classification of hyponatremia
There are two possible approaches to the diagnosis of hyponatremia: .
same tests (serum osmolality ... , urine osmolality ... and urinary sodium ... the patient has SIADH ... #Algorithm #Differential
Hyponatremia - Diagnosis and Treatment
Hyponatremia is usually caused by the inability to excrete water normally.
is usually caused ... 3 questions to work ... Measure urine osmolality ... Treatment #management #nephrology ... #sodium
Management of SIADH
Treat underlying cause:
 • Causes can include pain, primary lung pathology, post-operative phenomenon, medications,
promoting passive sodium ... Saline: • If Urine ... osmolality < 538 ... #Management #hyponatremia ... #nephrology #treatment