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Classification, Differential Diagnosis, and Features of Hyponatremia According to Volume Status 

Hypervolemic hypernatremia 
 - CHF
syndrome - Acute ... and chronic kidney ... deficit - Salt-losing ... Vomiting - Diarrhea ... Differential #Diagnosis #Table
Diuretics and Agents Regulating Renal Excretion

Carbonic Anhydrase Inhibitors (Acetazolamide, Dichlorphenamide)
 • Glaucoma
 • Epilepsy
 • Altitude
Regulating Renal Excretion ... irrigation • Management ... Torsemide) • Acute ... hyperaldosteronism • Acute ... #Medications #Table
Causes of Hyponatremia - Differential Diagnosis Algorithm
Hypovolemia, UNa > 20: 
 • Renal losses, Diuretic excess,
deficiency, Salt-losing ... losses, Vomiting, Diarrhea ... antidiuretic hormone secretion ... UNa > 20: • Acute ... or chronic renal
Muscarinic Receptor Agonists and Antagonists 
Muscarinic Receptor Agonists
Methacholine
 • Diagnosis of bronchial airway
Carbachol
 • Glaucorna (topical
Receptor Agonists and Antagonists ... Muscarinic Receptor Antagonists ... Atropine • Acute ... hyoscyamine • Diarrhea-predominant ... #Pharmacology #Table
Algorithm for the Evaluation of Chronic Diarrhea (< 7 days)
Exclude:
1. Causes of acute diarrhea
2. Lactose intolerance
3.
Evaluation of Chronic ... Causes of acute ... diarrhea 2. ... 1000 g/24 h) #Chronic ... #Diarrhea #management
Causes of High-anion Gap and Non-anion Gap Metabolic Acidosis
Causes of High-anion Gap Acidosis:
 • Lactic acidosis
Renal failure (acute ... and chronic) Causes ... Diarrhea B. ... Chronic progressive ... ketosis with ketone excretion
Causes of Hyperkalemia
l. Pseudohyperkalemia
  A Cellular efflux; thrombocytosis, erythrocytosis, leukocytosis, in vitro hemolysis
  B.
Beta-Adrenergic antagonists ... Inadequate excretion ... Chronic kidney disease ... uropathy, post-acute ... Acute oliguric kidney