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20 July 2023: Review Articles

Understanding Acute Respiratory Distress Syndrome in High-Altitude Environments: A Comprehensive Review of Diagnosis and Treatment

Litao Guo 1ABEF* , Jingjing Sun 1CEF* , Zongzhao He 2BF* , Qindong Shi 1AEF* , Siqing Ma 2ADFG**

DOI: 10.12659/MSM.939935

Med Sci Monit 2023; 29:e939935

Table 1 Diagnostic criteria of blood gas on different elevations (mmHg) [6].

ElevationPaO2 (FiO2=0.21)PaO2/FiO2P(A-a)O2 (FiO2=1.0)SaO2 (%)
(m)ALIARDSALIARDSALIARDSALIARDS
≥1500–≤50≤45≤250≤180≥150≥200≤85≤80
≥2000–≤45≤40≤200≤150≥200≥300≤80≤70
≥2500–≤40≤35≤150≤100≥250≥300≤70≤60
1 mmHg=0.133 kPa. PaO – partial pressure of arterial oxygen; FiO – fraction of inspired oxygen; P(A-a) O – alveolus-arteria oxygen partial pressure differ; SaO – arterial oxygen saturation; ARDS – acute respiratory distress syndrome; ALI – acute lung injury.

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Medical Science Monitor eISSN: 1643-3750
Medical Science Monitor eISSN: 1643-3750