Please choose the correct ending to complete the given sentence: Health: [header] How to treat severe bleeding during first aid [title] Get help. [step] Call for emergency medical help or ask someone else nearby to do it while you begin caring for the injured person. Do this as soon as possible, so that help will quickly arrive.

Ending1: [substeps] Did the person seem to be in great pain? If they are, it may be time to see a doctor. Depending on what type of wound you received, should you seek medical help? If you have ever tried cpr, it may be helpful to get someone to teach you it. Ending2: [substeps] It is normal for a tourniquet to become wet if hees were to draw blood because it bonds to artery walls. This means hees will bleed significantly more if hees is directly under an area of the nervous system, which is the area of the leg where blood pooled. Ending3: Get emergency medical help as soon as possible, even if you think it might not be possible to do so without the risk of accidentally killing yourself or injuring yourself or someone else. [substeps] If you suspect bleeding from your upper body and it extends past your lower extremities (e.g., the elbows, legs), call 9-1-1 or therapist. Ending4: This is the key to survival for a severely injured person. [substeps] If you suspect the person has injuries that are causing internal bleeding, let medical help know when you call.

Answer format: ending1/ending2/ending3/ending4