Correct!
5. All of the above

Heatstroke can lead to multisystem organ failure. Liver function tests (serum aspartate transaminase, alanine transaminase, and bilirubin) should be measured to monitor for liver failure. In addition to the usual serum electrolytes (Na+, K+, CL-, HCO3-) magnesium and phosphate should be measured. Unfortunately, despite rapid cooling and moderate fluid administration, the patient developed rhabdomyolysis, renal failure, hepatic failure, and disseminated intravascular coagulation (DIC). He remained minimally responsive and was intubated for airway protection.

He had a complicated hospital course that included hypovolemic and septic shock, DIC, bilateral lower extremity partial thickness burns, ischemic hepatitis, and rhabdomyolysis with renal failure. He was then transferred to a burn ICU for higher level of care, and was subsequently intubated for airway protection. Several days after his admission to the burn ICU he developed thick secretions. A CT scan was performed (Figure 1).

Figure 1. Representative view of thoracic CT scan in lung windows.

Which of the following have been shown to improve atelectasis in mechanically ventilated patients? (Click on the correct answer to proceed to the fourth of five panels)

  1. Manual hyperinflation and insufflation-exsufflation
  2. N-acetylcysteine to thin secretions
  3. Percussion and postural drainage
  4. Therapeutic bronchoscopy
  5. All of the above

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