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Ronnie is a 15-year-old boy with no significant past medical history. He was admitted to the hospital following a collapse during a hiking trip from 10:00 am to 3:00 pm, on a day with a temperature of 33 °C and relative humidity of 90%. He experienced profuse sweating but consumed only 500 mL of fluid throughout the hike. Upon arrival at the emergency department, he had regained consciousness, with a body temperature of 40.1 °C. He was transferred to the PICU, where physical cooling measures were initiated for suspected heat stroke. Tea-coloured urine was observed, and urine dipstick testing was positive for ‘red blood cells'. Why did Ronnie develop these urinary symptoms?

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The Hike to the Peak and the ICU

  • 章节

  • 发表日期：

    2026年

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  • Manson Chon In Kuok

摘要

Ronnie is a 15-year-old boy with no significant past medical history. He was admitted to the hospital following a collapse during a hiking trip from 10:00 am to 3:00 pm, on a day with a temperature of 33 °C and relative humidity of 90%. He experienced profuse sweating but consumed only 500 mL of fluid throughout the hike. Upon arrival at the emergency department, he had regained consciousness, with a body temperature of 40.1 °C. He was transferred to the PICU, where physical cooling measures were initiated for suspected heat stroke. Tea-coloured urine was observed, and urine dipstick testing was positive for ‘red blood cells'. Why did Ronnie develop these urinary symptoms?