9 results
Hypernatremia Diagnosis and Workup

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

1) Check Urine Osmolality:
 > 600 mOsm/kg - Implies extrarenal mechanism
Workup Algorithm ... 1) Check Urine ... mechanism 2) Volume ... #Algorithm #nephrology ... #sodium
Hyponatremia - Differential Diagnosis Algorithm
Hypovolemic - Give volume
Hypervolemic (Edematous) - Look for and treat underlying cause
Hyponatremia - Differential ... Hypovolemic - Give volume ... - Primary Polydipsia ... Algorithm #diagnosis #nephrology ... #sodium
Hypernatremia Differential Diagnosis Algorithm - Diabetes Insipidus Workup

Step #1 - Consider the history
Step #2 - Assess
Hypernatremia Differential ... Diabetes Insipidus Workup ... Step #1 - Consider ... Management #Algorithm #Sodium ... #nephrology #insipidus
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
+K / serum Na >1 ... : SIADH, Renal Sodium ... intake (Primary polydipsia ... #differential # ... #nephrology
Hyponatremia Differential Diagnosis Table

 • Step 1: Correct for hyperglycemia. Corrected Na = [(glucose - 100)/
Hyponatremia Differential ... Table • Step 1: ... Na (FeNa) • Volume ... Diagnosis #Table #nephrology ... #sodium
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
Hyponatremia Diagnostic Algorithm
1) Check serum osmolality
2) Check urine osmolality
3) ADH Dependent - Check volume status, urine
Algorithm 1) Check ... Dependent - Check volume ... status, urine sodium ... Diagnosis #Algorithm #differential ... nephrology
Primary Polydipsia
Definition: Excessive volitional water intake
Epidemiology:
 • 6-20% of patients with psychiatric disorders - Most commonly
• Symptomatic hyponatremia ... diabetes insipidus Differential ... intoxication Initial Workup ... , Urine Sodium ... diagnosis #management #nephrology