8 results
Causes of Hypernatremia - Differential Diagnosis
Inadequate water intake:
 • Lack of access to water
Extrarenal hypotonic fluid
Causes of Hypernatremia ... perspiration Renal ... insipidus • Nephrogenic ... Differential #Diagnosis #Causes ... #nephrology #sodium
Hypernatremia Diagnosis and Workup

Step 1 . Repeat the sodium concentration.
Step 2.  Check plasma osmolality.
NORMAL PLASMA
Repeat the sodium ... NORMAL PLASMA OSMOLALITY ... hypothyroidism • adrenal ... Diagnosis #Workup #Algorithm ... #Nephrology
Hypernatremia - Differential Diagnosis Workup Algorithm

1) Check Urine Osmolality:
 > 600 mOsm/kg - Implies extrarenal mechanism
Diagnosis Workup Algorithm ... , Ingestion Renal ... insipidus (central or nephrogenic ... Diagnosis #Workup #Algorithm ... #nephrology #sodium
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
time you have a case ... remember than the normal ... volume-based algorithm ... Hypothyroidism, Adrenal ... #nephrology
Adrenal Insufficiency Differential Diagnosis Algorithm
Clinical suspicion: Weakness, fatigue, nausea, musculoskeletal pain, dizziness, volume depletion, abdominal pain,
Differential Diagnosis Algorithm ... Weakness, fatigue, nausea ... , hypotension, hyponatremia ... ACTH) stimulation test ... insufficiency • Low or normal
Causes of Polyuria - Differential Diagnosis Algorithm
Polyuria - Urine Output > 3L/day, Increased Urine Volume (>2ml/min)
Osmotic
Causes of Polyuria ... Differential Diagnosis Algorithm ... Recovery from Acute Renal ... #Polyuria #Nephrology ... #Causes
Hyponatremia - Differential Algorithm
Isotonic Hyponatremia: Hyperlipidemia, Hyperproteinemia, Recent TURP
Hypotonic Hyponatremia: 
 • Hypovolemia: Diuretics/Nephropathies, Vomiting, Diarrhea,
Algorithm Isotonic ... Syndrome, Chronic Renal ... #Differential #Algorithm ... #diagnosis #causes ... #nephrology #sodium
Management of Hyponatremia
Hypertonic Saline - Only indicated if patient has severe symptoms + Na < 125
Give
Management of Hyponatremia ... SIADH — look for cause ... hourly • Identify Cause ... #Management #algorithm ... #treatment #sodium