48 results
Urine Specific Gravity - Interpretation
Specific Gravity = Density of urine / Density of water
SG close to
Urine Specific Gravity ... Gravity = Density of urine ... resistance to ADH ... inappropriate ADH ... Interpretation #diagnosis #differential
Causes of Hyponatremia - Differential Diagnosis Algorithm
Syndrome of Inappropriate ADH - Euvolemic; no physiologic stimulus to
Hyponatremia - Differential ... Inappropriate ADH ... Hypo-osmolar urine ... 100 mmol/kg - ADH ... Hyponatremia #Nephrology #Differential
Causes of Hyponatremia - Differential Diagnosis Algorithm
Syndrome of Inappropriate ADH - Euvolemic; no physiologic stimulus to
Hyponatremia - Differential ... Inappropriate ADH ... Hypo-osmolar urine ... 100 mmol/kg - ADH ... Hyponatremia #Nephrology #Differential
Hyponatremia Differential Diagnosis Algorithm - Utilizing Uric Acid 
ADH promotes Urea/uric acid excretion along with water
Hyponatremia Differential ... Utilizing Uric Acid ADH ... Osmolarity 2) Urine ... Osmolarity 3) Urine ... #Hyponatremia #Differential
Cerebral Salt Wasting vs SIADH - Pathophysiology 
1) Neurological event
2) Sodium loss from tubules
3) Naturiesis →
Hypovolaemia → ADH ... → Increased urine ... #hyponatremia #comparison
Causes of Metabolic Alkalosis - Differential Diagnosis Algorithm
Urine chloride < 20 mmol/l - Chloride responsive (Chloride
Causes of Metabolic ... Alkalosis - Differential ... Diagnosis Algorithm Urine ... diuretic use Urine ... ThePeanutKidney #Metabolic
Primary Metabolic Alkalosis - Differential Diagnosis Algorithm
Volume Depleted 2° hyperaldosteronism
 • Low Urine Cl-: Vomiting, NGT
Primary Metabolic ... Alkalosis - Differential ... hyperaldosteronism • Low Urine ... (late) • High Urine ... #Alkalosis #Differential
Metabolic Alkalosis - Urinary Chloride Algorithm
Cl- responsive metabolic alkalosis
 • Kidney loss of Cl-
LiCl use The urine ... diarrhea, a high urine ... Urine chloride is ... settings, the urine ... Algorithm #nephrology #differential
Primary Metabolic Alkalosis - Differential Diagnosis Algorithm
Volume Depleted - 2° hyperaldosteronism
 • Low Urine Cl-: Vomiting,
Primary Metabolic ... Alkalosis - Differential ... hyperaldosteronism • Low Urine ... (late) • High Urine ... aldosteronism #Metabolic
Causes of Polyuria - Differential Diagnosis
Excess Intake of Water:
 • Primary polydipsia (a.k.a. "psychogenic polydipsia")
 •
of Polyuria - Differential ... production Of ADH ... resistance to ADH ... Polyuria Mimics (↑ urine ... frequency without ↑ urine