13 results
Hypernatremia - Differential Diagnosis Workup Algorithm

1) Check Urine Osmolality:
 > 600 mOsm/kg - Implies extrarenal mechanism
Differential Diagnosis Workup ... insipidus (central or nephrogenic ... Hypervolemic: Conn syndrome ... , Cushing syndrome ... Algorithm #nephrology #sodium
Hypernatremia Diagnosis and Workup

Step 1 . Repeat the sodium concentration.
Step 2.  Check plasma osmolality.
NORMAL PLASMA
Hypernatremia Diagnosis ... and Workup Step ... Repeat the sodium ... • nephrotic syndrome ... #Diagnosis #Workup
Lactic Acidosis - Differential Diagnosis Framework

Type A: Impaired O2 Delivery (DO2)
 • Decreased O2 Delivery: Hypotension
Lactic Acidosis ... Ischemia, Compartment Syndrome ... Hypothermia & Shivering, Seizures ... Beta-Agonists, ↑ work ... toxic alcohols, Sodium
Clinical manifestations of acute liver failure 

Brain: 
Hepatic encephalopathy,  
Cerebral edema,  
Intracranial hypertension,
hypertension, Seizures ... Hepatorenal syndrome ... Hepatoadrenal syndrome ... Coagulopathy, Lactic ... acidosis Systemic
Workup for Hyperphosphatemia - Differential Diagnosis Framework
Rule out spurious hyperphosphatemia: paraproteinemia, hyperlipidemia, hemolysis, hyperbilirubinemia, liposomal amphotericin
Workup for Hyperphosphatemia ... Rhabdomyolysis, Tumor lysis syndrome ... Transcellular Shift: • Lactic ... acidosis, DKA ... Diagnosis #Framework #Workup
Inherited Defects in Kidney Tubule Epithelial Cells

Renal glucosuria - Na+-dependent glucose cotransporter
Cystinuria - Amino acid transporter
Bartter
cell epithelial sodium ... of epithelial sodium ... renal tubular acidosis ... exchanger,H+-ATPase Nephrogenic ... -2 deficiency Nephrogenic
Metabolic Alkalosis - Urinary Chloride Algorithm
Cl- responsive metabolic alkalosis
 • Kidney loss of Cl-
diuretic use, Bartter syndrome ... , Gitelman syndrome ... ketoacidosis • D-lactic ... settings, the urine sodium ... the excretion of sodium
Tachypnea - Differential Diagnosis Framework

Definitions
 • Tachypnea: Respiratory rate > 20/min, shallow breathing in adults
 •
• Metabolic acidosis ... exposures • Lactic ... acidosis of any ... Post-Ictal/Grand mal seizure ... Inflammation • Central neurogenic
Heat Illnesses and Heat Stroke - Differential Diagnosis Framework

Heat Cramps:
 • Muscle pain or spasm -
Dehydration - Loss of sodium ... conditions - Neurogenic ... heat illness → Hypernatremia ... consciousness, Coma/seizure ... Possible DIC - Mild lactic
Hyponatremia - Diagnosis and Treatment
Hyponatremia is usually caused by the inability to excrete water normally.
Hyponatremia - Diagnosis ... 3 questions to work ... demyelination syndrome ... of symptomatic (seizures ... management #nephrology #sodium