370 results
Hypokalemia Evaluation Algorithm

Before evaluating hypokalemia, life threatening complications such as arrhythmias and paralysis should be looked
treated with IV potassium ... wasting from other causes ... ratio < 15 mEq/g ... ratio > 15 mEq/g ... urinary losses: • High
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
phlebotomy High ... • Recent IV potassium ... • Penicillin G ... differential #diagnosis #causes ... #potassium #high
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
phlebotomy High ... • Recent IV potassium ... • Penicillin G ... differential #diagnosis #causes ... #potassium #high
Complications after Bariatric Surgery
Post Bariatric Intestinal Failure:
 • Severe protein malnutrition after bariatric surgery
 • More
treatment, but high ... Disorder marked by high ... Gastric bypass causes ... oral calcium, potassium ... abuse by Chuma G.
Causes of Hyperkalemia
l. Pseudohyperkalemia
  A Cellular efflux; thrombocytosis, erythrocytosis, leukocytosis, in vitro hemolysis
  B.
Causes of Hyperkalemia ... positively charged) G. ... Differential #Diagnosis #High ... #Potassium #Classification ... #Causes
Potassium-Binding Agents to Treat Hyperkalemia
Sodium zirconium cyclosilicate (Lokelma):
 • Mechanism: Preferentially captures K in exchange for
Potassium-Binding ... constipation, diarrhea, nausea ... hypokalemia); nausea ... patients sensitive to high ... of aspiration #Potassium
Causes of Hyperkalemia

Hyperkalemia is caused by excess potassium intake, impaired potassium excretion, or transcellular shifts. The
Causes of Hyperkalemia ... Hyperkalemia is caused ... by excess potassium ... intake, impaired potassium ... rarely the sole cause
Algorithm for patients with hypokalemia on the basis of the potassium-to-creatinine ratio in the urine
Urine K+
the basis of the potassium-to-creatinine ... K+ <13 mEq K+/g ... K+ >13 mEq K+/g ... mmol creatinine) High ... hypokalemia #urine #potassium
Hyperkalemia: Diagnostic algorithm
Decreased renal potassium excretion
 • Acute renal failure
 • Chronic renal failure
 • Drugs
Increased
Decreased renal potassium ... Drugs Increased potassium ... (oral/iv) • Potassium-rich ... Normal, Renin High ... hypoplasia Aldosterone high
Causes of Metabolic Alkalosis - Differential Diagnosis
Chloride depletion syndromes
 • Gastrointestinal losses
    -
Causes of Metabolic ... chloridorrhea - High-volume ... administration Other causes ... syndrome • Severe potassium ... depletion (serum potassium