Elderly female with CP and SOB

76yo female presents with central chest pain. She is mottled peripherally, sats 86%, RR 24, BP 60/40, HR 130 AF, GCS 14-15 (mainly too sick to speak or open her eyes).

She has a PHx of HT. She lives alone and is independent with ADLs. 

What is your initial management?

What investigations would you like at the bedside?