Just the Facts: The Five F's of Focused Echocardiography in Shock.

A 60-year-old female presents to the emergency department (ED) with a 3-day history of fatigue and mild breathlessness. She has a history of lung cancer. Her vitals indicate shock with a heart rate of 140 bpm, a systolic blood pressure (SBP) of 65 mmHg, a respiratory rate of 28, with an oxygen saturation of 90% on 100% a nonrebreather mask, and a normal temperature at 36°C. Her electrocardiograph (ECG) shows sinus tachycardia. She appears mottled and pale.