12 results
Differential Diagnosis and Evaluation of Hyponatremia:
1) Identification of onset (acute vs. chronic)
2) Presence of symptoms (HA,
Differential Diagnosis ... and Evaluation ... of Hyponatremia: ... symptoms (HA, nausea ... Differential #Algorithm #Ddxof
Causes of Hyponatremia - Differential Diagnosis Algorithm
Hypovolemia, UNa > 20: 
 • Renal losses, Diuretic excess,
Causes of Hyponatremia ... - Differential Diagnosis ... and metabolic alkalosis ... #Algorithm #Causes ... #nephrology
Hypokalemia Differential Algorithm
Acidosis
 - RTA
 - Diarrhea
pH Normal 
 1. Decreased Mg 
 2. Intracellular Shift
Metabolic alkalosis ... Liddle - Dr. ... Differential #Algorithm #Diagnosis ... #Causes #Workup ... #Nephrology
Primary Metabolic Alkalosis - Differential Diagnosis Algorithm
Volume Depleted - 2° hyperaldosteronism
 • Low Urine Cl-: Vomiting,
Primary Metabolic Alkalosis ... - Differential Diagnosis ... Cushing's syndrome, Liddle ... #Algorithm #Nephrology ... #Causes
Hyponatremia - Differential Diagnosis Algorithm
Hypovolemic - Give volume
Hypervolemic (Edematous) - Look for and treat underlying cause
Hyponatremia - Differential ... treat underlying cause ... , CNS Disease, Meds ... UnremarkableLab #Hyponatremia ... #nephrology #sodium
Hypokalemia Evaluation Algorithm

Before evaluating hypokalemia, life threatening complications such as arrhythmias and paralysis should be looked
wasting from other causes ... suggests extra-renal causes ... - Metabolic Alkalosis ... #Hypokalemia #diagnosis ... differential #potassium #nephrology
Serious Bacterial Illness (SBI):
1) UTI and pyelonephritis
Most common cause of SBI
Accounts for 3-8% of uncharacterized fevers
Female
pyelonephritis Most common cause ... Consider BCx, CSF evaluation ... unformed) PNA diagnosed ... #Peds #EM #Classification ... SeriousBacterialIllness #Ddxof
Causes of Metabolic Alkalosis: Differential Diagnosis
ECF volume contracted: urine chloride concentration <20 meq/L
 • Gastric alkalosis:
Causes of Metabolic ... Diagnosis ECF ... deficiency • Liddle ... #Differential #Diagnosis ... #Causes #nephrology
Causes of Secondary Hypertension - Workup and Differential Diagnosis
Approach (when evaluation should be done):
1. Severe or
and Differential Diagnosis ... Approach (when evaluation ... heart failure, neurologic ... and metabolic alkalosis ... Neurologic disorders
Diuretics and Agents Regulating Renal Excretion

Carbonic Anhydrase Inhibitors (Acetazolamide, Dichlorphenamide)
 • Glaucoma
 • Epilepsy
 • Altitude
• Metabolic alkalosis ... disequilibrium syndrome • Diagnosis ... Kidney stones caused ... kidney disease • Liddle ... and euvolemic hyponatremia