8 results
Hypernatremia Diagnosis and Workup

Step 1 . Repeat the sodium concentration.
Step 2.  Check plasma osmolality.
NORMAL PLASMA
and Workup Step ... Step 2. ... HYPOVOLEMIC • ... • CHF • liver ... #Algorithm #Nephrology
Hypernatremia - Differential Diagnosis Workup Algorithm

1) Check Urine Osmolality:
 > 600 mOsm/kg - Implies extrarenal mechanism
Differential Diagnosis Workup ... Algorithm 1) ... renal mechanism 2) ... Differential #Diagnosis #Workup ... #Algorithm #nephrology
Differential Diagnosis and Evaluation of Hyponatremia:
1) Identification of onset (acute vs. chronic)
2) Presence of symptoms (HA,
acute vs. chronic) 2) ... symptoms (HA, nausea ... history (cardiac, liver ... #Hypervolemic # ... #Differential #Algorithm
Hyponatremia - Differential Diagnosis Algorithm
ADH Independent:
 • Tea and Toast Syndrome, Beer Potomania - Low solute
Hyponatremia - Differential ... Diagnosis Algorithm ... • Hypervolemic ... Heart failure, liver ... #causes #nephrology
Hyponatremia - Diagnostic Evaluation Algorithm

Step 1: Consider whether Posm may actually be normal or elevated
Step 2:
Hyponatremia - Diagnostic ... Evaluation Algorithm ... elevated Step 2: ... considered likely, the cause ... #Diagnosis #Workup
Hyponatremia - Differential Algorithm
Isotonic Hyponatremia: Hyperlipidemia, Hyperproteinemia, Recent TURP
Hypotonic Hyponatremia: 
 • Hypovolemia: Diuretics/Nephropathies, Vomiting, Diarrhea,
Algorithm Isotonic ... polydipsia • Hypervolemia ... Heart Failure, Liver ... #Differential #Algorithm ... #diagnosis #causes
Hyponatremia - Diagnosis and Treatment
Hyponatremia is usually caused by the inability to excrete water normally.
is usually caused ... 3 questions to work ... 2) Is ADH elevated ... the underlying cause ... include vaptans (HF/liver
Hyponatremia Differential Diagnosis Algorithm in Cancer
UOsm ≥ 100 mOsm/kg = Urine is inappropriately concentrated for hypotonic
Hyponatremia Differential ... Diagnosis Algorithm ... CAR-T- and IL-2- ... amyloidosis) • Liver ... chemotherapy, nausea