A Case of 13% Burn Injury with Pseudohyperkalemia due to Increased Platelet Count

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  • Ikeda Kensuke
    Department of Trauma and Critical Care Medicine, Kyorin University, School of Medicine
  • Kaita Yasuhiko
    Department of Trauma and Critical Care Medicine, Kyorin University, School of Medicine
  • Tanaka Yuya
    Department of Trauma and Critical Care Medicine, Kyorin University, School of Medicine
  • Yoshikawa Kei
    Department of Trauma and Critical Care Medicine, Kyorin University, School of Medicine
  • Kato Soichiro
    Department of Trauma and Critical Care Medicine, Kyorin University, School of Medicine
  • Inoue Yoshitaka
    Department of Trauma and Critical Care Medicine, Kyorin University, School of Medicine
  • Yamaguch Yoshihiro
    Department of Trauma and Critical Care Medicine, Kyorin University, School of Medicine

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Other Title
  • 血小板数増加により偽性高カリウム血症を認めた13％熱傷の1例

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Abstract

<p> Increased platelet counts can cause pseudohyperkalemia; however, its occurrence has not been reported in patients with burns. Herein, we report a case of pseudohyperkalemia due to increased platelet counts in a patient with 13% burn injuries.<br> The patient was a man in his 20s. He received a total of 13% burn injuries on the abdomen, back, and right upper and lower extremities. Surgery was performed on the 3rd and 10th days, and epithelialization was successful. His platelet count was 27.6×104/µL upon admission, but increased to 71.7×104/µL on the 16th day. His serum K level was 4.2 mEq/L upon admission, but increased to 5.4 mEq/L on the 14th day. Excessive potassium administration, intracellular release of potassium, and efflux disorder were negative, and plasma K levels were 0.4 mEq/L and 0.6 mEq/L lower than serum levels on the 10th and 17th days, respectively. A diagnosis of pseudohyperkalemia due to increased platelet count was made. The patient was discharged on the 31st day following the burn injury.<br> The possibility of pseudohyperkalemia should be considered when patients with burns present with increased platelet counts.</p>

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