The conversation between human and AI assistant.
Bleeding: How many blood do you have to lose to start feeling dizzy and to cause a hypovolemic shock?
I was wondering how much blood someone has to lose before they start feeling dizzy and risk going into hypovolemic shock?
Generally, humans start feeling dizzy and lightheaded after losing around 15-30% of their total blood volume. Hypovolemic shock can occur at around 30-40% blood loss.