10 results
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
normal volume-based algorithm ... , Renal Sodium loss ... intake (Primary polydipsia ... #Hyponatremia #differential ... #nephrology
Modified Hyponatremia Algorithm
Hypertonic Hyponatremia: Hyperglycemia, Mannitol, Urologic irrigants
Hypotonic Hyponatremia: 
 • ADH ON (UOsm > 100):
OFF (UNa > 30): SIADH ... , Medications (diuretics ... 100): Primary polydipsia ... #diagnosis #sodium ... #nephrology
Hypernatremia Diagnosis and Workup

Step 1 . Repeat the sodium concentration.
Step 2.  Check plasma osmolality.
NORMAL PLASMA
Diagnosis and Workup ... Repeat the sodium ... EUVOLEMIC • SIADH ... • psychogenic polydipsia ... #Algorithm #Nephrology
Hyponatremia - Differential Diagnosis Algorithm
Hypovolemic - Give volume
Hypervolemic (Edematous) - Look for and treat underlying cause
Diagnosis Algorithm ... - Primary Polydipsia ... , SSRIs) - SIADH ... #diagnosis #nephrology ... #sodium
SIADH Treatment Options
1. Treat underlying cause of SIADH: Pain, Primary lung pathology, Post-operative phenomenon, Medications, Basically
SIADH Treatment ... Post-operative phenomenon, Medications ... promoting passive sodium ... #hyponatremia #nephrology ... #treatment
Primary Polydipsia
Definition: Excessive volitional water intake
Epidemiology:
 • 6-20% of patients with psychiatric disorders - Most commonly
in one study, all ... diabetes insipidus Differential ... Pseudohyponatremia, SIADH ... intoxication Initial Workup ... diagnosis #management #nephrology
Management of SIADH
Treat underlying cause:
 • Causes can include pain, primary lung pathology, post-operative phenomenon, medications,
Management of SIADH ... post-operative phenomenon, medications ... promoting passive sodium ... #hyponatremia #nephrology ... #treatment
Hyponatremia - Differential Algorithm
Isotonic Hyponatremia: Hyperlipidemia, Hyperproteinemia, Recent TURP
Hypotonic Hyponatremia: 
 • Hypovolemia: Diuretics/Nephropathies, Vomiting, Diarrhea,
Algorithm Isotonic ... • Euvolemia: SIADH ... Potomania, Psychogenic polydipsia ... #causes #nephrology ... #sodium #low
Hyperkalemia - Diagnosis and Management - GrepMed Handbook

S/Sx: Most pts asymptomatic. Weakness, cramping, nausea, paresthesias, palpitations,
Etiology: • Medications ... , RTA Type IV, AI ... reabsorption) Workup ... STOP offending medications ... #potassium #nephrology
There are similarities and differences between these 3 conditions which all carry treatment implications. Each mimic
carry treatment ... hormones that work ... #diagnosis #differential ... #algorithm #management ... #treatment #criticalcare