FCEM2-0626

You are with a hiking group and have ascended from an elevation of 2800m to 3400 meters over the past two days. One of your group members is experiencing difficulty breathing while at rest and has developed a dry cough. The individual’s vital signs are as follows:

Blood pressure: 150/92 mmHg
Pulse: 126 bpm
Respiration rate: 28 bpm
Oxygen saturations: 86% on air

Which of the following medications would be most appropriate to administer to this individual?