63歳の女性。7月末の正午過ぎ,救急外来に日本語の話せない外国人女性が救急車で搬入された。救急車で同行した配偶者(外国人)が病院の臨床修練外国医師に話した内容と患者の所見をまとめた診療記録を示す。
The patient felt faint while walking on the beach. She then sat under a shade where she vomited. She complained of headache and dizziness before fainting. Her face turned red and her breathing became rapid.
Physical examination
・ Body temperature:39.2℃.
・ Conscious level:Glasgow Coma Scale E3 V4 M5.
・ Skin:generally hot, flushed and dry.
・ Heart rate:140/min, regular.
Blood pressure:86/60 mmHg.
Respiratory rate:24/min, shallow.
・ No hemiplegia.
・ Muscle spasms in limbs.
まず行うべきなのはどれか。