118 results
Deciphering the SAAG - Serum to Ascites Albumin Gradient
Ascites is either made in the liver sinusoid
Deciphering the SAAG ... - Serum to Ascites ... and fibrosis) High ... SAAG ≥ 1.1: • Aka ... Ascites #Fluid #Serum
Differentiation Between Nephrotic Syndrome and Nephritic Syndrome 
== Nephrotic Syndrome ==
Onset - Insidious 
Edema - ++++
Blood
- Insidious Edema ... - Absent Serum ... Onset - Abrupt Edema ... - Present Serum ... edgarvlermamd - Nephrology
True Hyponatremia Differential Algorithm

Instead (or in addition) of volume status examination, check urine sodium and serum
urine sodium and serum ... low, uric acid high ... - Urine sodium high ... Algorithm #Diagnosis #Nephrology
Hyponatremia Differential Diagnosis Algorithm - Utilizing Uric Acid 
ADH promotes Urea/uric acid excretion along with water
water retention 1) Serum ... Urine Sodium 4) Serum ... Acid → SIADH - High ... Diagnosis #Algorithm #nephrology
Causes of Hypernatremia - Differential Diagnosis Algorithm
Hypernatremia - Excess free water loss, Serum Sodium >145 mmol/L
High
Causes of Hypernatremia ... free water loss, Serum ... Sodium >145 mmol/L High ... Hypernatremia #Nephrology ... Diagnosis #Algorithm #Causes
Peritonitis - Spontaneous vs Secondary vs Peritoneal Dialysis Associated Peritonitis
Spontaneous Bacterial Peritonitis
 • Cirrhosis (high SAAG)
• Cirrhosis (high ... SAAG) + ascites ... 50, LDH ULN for serum
Approach to Hypomagnesemia 

Fractional excretion of magnesium = (urine magnesium x serum creatinine)/ [0.7 (serum magnesium
urine magnesium x serum ... creatinine)/ [0.7 (serum ... differential #diagnosis #causes ... #nephrology #magnesium
Hyperkalemia Differential Diagnosis Algorithm
R/O Pseudo-hyperkalemia:
 • Possible Lab error! Alwavs Repeat Blood sample!
 • Leukocytosis, Thrombocytosis:
releasing K+ into serum ... TTKG should be high ... Diagnosis #Algorithm #causes ... #potassium #high
Causes of Hypernatremia - Differential Diagnosis
Inadequate water intake:
 • Lack of access to water
Extrarenal hypotonic fluid
Causes of Hypernatremia ... Differential #Diagnosis #Causes ... #nephrology #sodium ... #high
Normal Anion-Gap Acidosis (NAGMA) - Differential Diagnosis Framework and Workup

NAGMA
- Chem, ABG or VBG
- Calculate Anion
pH > 5.5 • Serum ... pH < 5.5 • Serum ... K high/normal ... - Diarrhea - High ... Diagnosis #Workup #nephrology