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Causes of Hypokalemia - Differential Diagnosis Algorithm
Increased Loss 
 - Increased GI Loss
 - Increased Urinary
Causes of Hypokalemia ... Differential Diagnosis Algorithm ... Differential #Diagnosis #Algorithm ... #causes #potassium ... #low #pathophysiology
Laboratory Evaluation of Patients for Thyroid Disease 
Hyperthyroidism:
 • Graves disease - TSH low; free T4
Laboratory Evaluation ... disease - TSH low ... high; in some cases ... disease course #hypothyroid ... #hyperthyroid #
Algorithm for the Evaluation of Chronic Diarrhea (< 7 days)
Exclude:
1. Causes of acute diarrhea
2. Lactose intolerance
3.
Algorithm for the ... Evaluation of Chronic ... Causes of acute ... 1000 g/24 h) #Chronic ... Diarrhea #management #algorithm
Primary Adrenal Insufficiency:
 • ACTH stimulation test - Synthetic ACTH does not stimulate cortisol secretion because
aldosterone - Low ... in cases in which ... secretion; in chronic ... as a result of chronic ... Insufficiency #Evaluation
Causes of Hypokalemia
I. Decreased intake
   A. Starvation
   B. Clay ingestion
II. Redistribution into
Causes of Hypokalemia ... Increased secretion of potassium ... Differential #Diagnosis #Low ... #Potassium #Classification ... #Causes
Causes of Hyperkalemia
l. Pseudohyperkalemia
  A Cellular efflux; thrombocytosis, erythrocytosis, leukocytosis, in vitro hemolysis
  B.
Causes of Hyperkalemia ... Drug-associated: heparin, low-molecular-weight ... Diagnosis #High #Potassium ... #Classification ... #Causes