320 results
Hyponatremia Differential Diagnosis Algorithm - Utilizing Uric Acid 
ADH promotes Urea/uric acid excretion along with water
Utilizing Uric Acid ADH ... Osmolarity 2) Urine ... Osmolarity 3) Urine ... High Uric Acid → renal ... Diagnosis #Algorithm #nephrology
Causes of Hyponatremia - Differential Diagnosis Algorithm
Syndrome of Inappropriate ADH - Euvolemic; no physiologic stimulus to
Inappropriate ADH ... GI losses • Renal ... Hypo-osmolar urine ... 100 mmol/kg - ADH ... #Hyponatremia #Nephrology
Causes of Hyponatremia - Differential Diagnosis Algorithm
Syndrome of Inappropriate ADH - Euvolemic; no physiologic stimulus to
Inappropriate ADH ... GI losses • Renal ... Hypo-osmolar urine ... 100 mmol/kg - ADH ... #Hyponatremia #Nephrology
Acute Kidney Injury - AKI Workup Algorithm and Differential Diagnosis
Baseline Investigations: full blood count with differential,
differential, urine ... dipstick, urine ... fragmentocytes, LDH ... blood culture, urine ... Differential #Diagnosis #nephrology
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 ... #differential #nephrology
General approach to AKI - Checklist

Urine electrolytes & FENa - Previously, it was believed that urine
- Checklist Urine ... believed that urine ... differentiate between pre-renal ... and intrinsic renal ... AcuteKidneyInjury #Nephrology
Renal Tubular Acidosis - Differential Diagnosis Algorithm
Decreased Serum K, Urine pH < 5.5 - Proximal RTA
Decreased
Renal Tubular Acidosis ... Decreased Serum K, Urine ... = Hyperkalemic Renal ... uncimchiefs #RTA #Renal ... Diagnosis #Algorithm #nephrology
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
volume-based algorithm Urine ... ≥100): SIADH, Renal ... Present (Uosm <100): Renal ... Hypervolemia with poor renal ... table #sodium #nephrology
Causes of Polyuria - Differential Diagnosis
Excess Intake of Water:
 • Primary polydipsia (a.k.a. "psychogenic polydipsia")
 •
production Of ADH ... Nephrogenic DI (Renal ... Polyuria Mimics (↑ urine ... frequency without ↑ urine ... Diagnosis #Causes #nephrology
Volume Based Approach to Hyponatremia
Hypovolemic, Serum uric acid >4
 • Urine Na <20: Extra-renal losses
 •
Na <20: Extra-renal ... losses • Urine ... Na >30: Renal losses ... Na > 30: Renal ... #sodium #low #nephrology