treating a wounded Airman you realize that he has probably lost approximately 2 liters of blood because the patient shows what signs?

- Hypotension (systolic blood pressure <90 mmHg)

-Tachycardia (heart rate >100 beats per minute)

-Tachypnea (respiratory rate >24 breaths per minute)

-Cool and clammy skin

-Altered mental status (confusion, disorientation, lethargy)