9 results
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
algorithm Urine ... intake, UNa <20 ... #Hyponatremia #differential ... #diagnosis #table ... #sodium #nephrology
Volume Based Approach to Hyponatremia
Hypovolemic, Serum uric acid >4
 • Urine Na <20: Extra-renal losses
 •
uric acid <4 • SIADH ... SatyaPatelMD #Volume ... #Hyponatremia #algorithm ... #diagnosis #sodium ... #low #nephrology
Hyponatremia Diagnosis Algorithm
UOsm ≥ POsm - Vasopressin-Dependent
 • UNa < 20 mEq/L - Appropriate (↓ EABV)
Algorithm UOsm ... Inappropriate - Consider: SIADH ... polydipsia, Low solute ... #differential # ... #nephrology
Modified Hyponatremia Algorithm
Hypertonic Hyponatremia: Hyperglycemia, Mannitol, Urologic irrigants
Hypotonic Hyponatremia: 
 • ADH ON (UOsm > 100):
- RAAS ON (UNa ... > 30): SIADH, Medications ... polydipsia, Low solute ... #diagnosis #sodium ... #nephrology
Hyponatremia - Differential Diagnosis Algorithm
Hypovolemic - Give volume
Hypervolemic (Edematous) - Look for and treat underlying cause
Diagnosis Algorithm ... , SSRIs) - SIADH ... #Diagnosis #Algorithm ... #diagnosis #nephrology ... #sodium
Management of SIADH
Treat underlying cause:
 • Causes can include pain, primary lung pathology, post-operative phenomenon, medications,
Management of SIADH ... pain, primary lung ... administered • Can cause volume ... promoting passive sodium ... #hyponatremia #nephrology
SIADH Treatment Options
1. Treat underlying cause of SIADH: Pain, Primary lung pathology, Post-operative phenomenon, Medications, Basically
Pain, Primary lung ... This can cause volume ... promoting passive sodium ... osmolality < 538 AND UNa ... #hyponatremia #nephrology
Acid Base Disorders - Blood Gas Interpretation

Steps for Blood Gas Interpretation: 
1. Acidemia or Alkalemia? 
2.
(AG) = {Na - (Cl ... Diagnosis: Causes ... NG suction - Volume ... or restrictive lung ... #Summary #Nephrology
Hyponatremia Differential Diagnosis Algorithm in Cancer
UOsm ≥ 100 mOsm/kg = Urine is inappropriately concentrated for hypotonic
Hyponatremia Differential ... Diagnosis Algorithm ... inappropriate • SIAD ... tumors, brain or lung ... #algorithm #nephrology