15 results
diagnosis differential management hypernatremia low treatment 3 cancer causes cerebral comparison di evaluation hypotonic insipidus oncology pathophysiology physiologic primary saltwasting
Hypernatremia Diagnosis and Workup Step 1 . Repeat the sodium concentration. Step 2. Check plasma osmolality. NORMAL PLASMA
1 . ... Repeat the sodium ... Step 2. ... HYPERVOLEMIC • CHF ... #Algorithm #Nephrology
Hyponatremia Differential Diagnosis Algorithm - Utilizing Uric Acid ADH promotes Urea/uric acid excretion along with water
water retention 1) ... Serum Osmolarity 2) ... 3) Urine Sodium ... Low Uric Acid → SIADH ... #nephrology #sodium
Volume Based Approach to Hyponatremia Hypovolemic, Serum uric acid >4 • Urine Na <20: Extra-renal losses •
Based Approach to Hyponatremia ... uric acid <4 • SIADH ... deficiency, Primary polydipsia ... #algorithm #diagnosis ... #sodium #low #nephrology
Cerebral Salt Wasting vs SIADH - Pathophysiology 1) Neurological event 2) Sodium loss from tubules 3) Naturiesis →
Pathophysiology 1) ... Neurological event 2) ... Sodium loss from ... → Increased urine ... #hyponatremia #
Hyponatremia - Differential Diagnosis Algorithm Hypovolemic - Give volume Hypervolemic (Edematous) - Look for and treat underlying cause
underlying cause (CHF ... - Primary Polydipsia ... , SSRIs) - SIADH ... #diagnosis #nephrology ... #sodium
Hyponatremia - Diagnostic Evaluation Algorithm Step 1: Consider whether Posm may actually be normal or elevated Step 2:
Step 1: Consider ... elevated Step 2: ... Check Uosm and/or Urine ... tests Step 5: If SIADH ... #Diagnosis #Workup
Physiologic Approach to Hypotonic Hyponatremia The next time you have a case of hypotonic hyponatremia, give the
normal volume-based algorithm ... Urine Na+K / serum ... Na >1 is predictive ... intake (Primary polydipsia ... #nephrology
Hypernatremia - Differential Diagnosis Workup Algorithm 1) Check Urine Osmolality: > 600 mOsm/kg - Implies extrarenal mechanism
Algorithm 1) ... Check Urine Osmolality ... renal mechanism 2) ... #Algorithm #nephrology ... #sodium
Hypernatremia Differential Diagnosis Algorithm - Diabetes Insipidus Workup Step #1 - Consider the history Step #2 - Assess
Diagnosis Algorithm ... Diabetes Insipidus Workup ... Step #1 - Consider ... history Step #2 ... #Sodium #nephrology
Primary Polydipsia Definition: Excessive volitional water intake Epidemiology: • 6-20% of patients with psychiatric disorders - Most commonly
occurs in only 2- ... Pseudohyponatremia, SIADH ... intoxication Initial Workup ... , Urine Sodium ... diagnosis #management #nephrology
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