A 70-year-old man presents to ED with fever, tachycardia, hypotension (BP 88/54 mmHg), confusion and suspected pneumonia on chest X-ray. You diagnose sepsis with septic shock. What is the most critical time-sensitive management action?AObtain blood cultures and delay antibiotics until results are availableBAdminister IV broad-spectrum antibiotics within one hour of recognising sepsisCStart low-dose oral antibiotics and observeDWait for CT imaging before starting treatmentERestrict IV fluids to avoid pulmonary oedemaCheck my answer