Britain has born two terrorist attacks in two weeks which have claimed the lives of 29 people.

Seven people died on Saturday in a terrorist attack at London Bridge and Borough Market.

This was just 12 days after 22 people were murdered at Manchester Arena following a concert by Ariana Grande.

Because of our security services - and the fact that most people deplore any kind of terrorism - it's unlikely you'll ever be caught up in a terrorist attack.

But if you ever are - or you're first on the scene following an attack - there is some advice from the British Red Cross to follow published in the Mirror.

First aid in the immediate minutes following trauma is absolutely essential for a victim's survival.

Joe Mulligan, head of First Aid Education at the Red Cross advises:

1. Focus on the quiet ones

Counter terrorism officers march near the scene of last night's London Bridge terrorist attack
Counter terrorism officers march near the scene of last night's London Bridge terrorist attack

"People who are injured and making a lot of noise clearly have their airways open," Emma Hammet, a former A&E nurse, first aid trainer, and founder of First Aid for Life told the Post.

"It is the quiet ones who can be slowly slipping away because they are not breathing.

"To check for breathing, ensure that the airway is open by tilting back the head and lifting the chin.

"Spit on the back of your hand and put it close to the victim’s mouth. It will feel cool when breath is expelled.

"Someone should be breathing at least twice in a 10 second period. Don't assume that agonal breathing (the death rattle) is normal breathing. This can be a sign that death is imminent.

"If someone is not breathing, start CPR."

2. First Aid is a humanitarian and compassionate act

"Cradling injured victims and comforting them is a very important part of first aid – connecting to the injured person," Joe Mulligan adds.

"Reassurance has been shown to be beneficial and improves a person’s chances because stress levels decrease.

"It calms the person and it also gives the first aider valuable thinking time to assess the situation and decide what to do next."

3. Stabbing and bullet wounds

Flowers outside the Queen Elizabeth II Centre in London, after the Westminster terror attack

If the victim is unresponsive and NOT breathing, lie him on his back and make sure his airway is open.

You do this by tilting back the head and pushing up the chin. Start performing CPR.

If the victim is unresponsive but IS breathing, roll them gently into the recovery position.

"Make sure that they are lying on the injured side. This will prevent blood and fluid entering the uppermost lung which is protected by gravity," Emma says.

"If the victim is still upright and moving around, they could collapse at any time due to blood loss, causing further injury.

"Don't remove clothing because they will go into shock due to blood loss and could develop hypothermia.

"Instead, cut or tear clothes so you can see the wounds. Apply pressure to the wounds using your hands or packing material like a scarf or T-shirt."

Going into shock is a real risk for victims with these sorts of injuries, so make sure you keep them warm and as comforted as possible.

Make sure you don't give them anything to eat or drink as they will almost certainly need to go into theatre when admitted to hospital.

Be aware that even a small or barely-visible wound could be indicative of major and fatal internal bleeding.

4. Using a tourniquet

Police close to the Manchester Arena the morning after a suspected terrorist attack at the end of a concert by US star Ariana Grande left 22 dead.

Done incorrectly, these can disastrous effects.

"It should only be used in a small number of cases where bleeding is catastrophic, and if direct pressure is not working," adds Emma.

Always treat heavy bleeding firstly and foremost with pressure and packing the wound.

5. Burns and shrapnel wounds

People look at tributes in St Ann's Square, Manchester, before a minute's silence to remember the victims of the terror attack in the city earlier this week.

Both of these can be potentially fatal, however, Joe warns against trying to remove sharp objects embedded in flesh.

"They might be blocking a major artery so if you remove then, you could have catastrophic bleeding."

Burns should be treated by being doused in cold fluids or bottled water - even beer or soft drinks will do.

Joe adds: "Never try and remove burnt on clothing however at the scene as this can cause further injury."

6. Head injuries

Police close to the Manchester Arena the morning after a suspected terrorist attack at the end of a concert by US star Ariana Grande left 22 dead

If you believe someone has sustained a head injury, make sure their airway is unobstructed and they are breathing. Then start CPR.

If the person is standing, get them to sit down.

Head injuries can worsen rapidly so acting fast is key.

7. Spine injuries

Forensic officers continue their work along Borough High Street following the June 3rd terror attack on June 5

Emma warns against moving people you suspect have a spine injury as little as possible to avoid further damage "to the delicate spinal chord."

This includes cradling their head.

Instead, if you need to move the patient, ask other people to help you log roll him or her into a safer place.

8. Injuries from vehicle impact and falls

Police officers on Borough High Street following a terror attack

Injuries sustained from speeding vehicles - as with the Westminster and London Bridge attacks - and heavy objects may very well have grave internal injuries.

These could be broken bones, burst arteries or torn spleens.

"Follow the 15 minute rule," advises Emma.

"If you can get someone out of a situation where they are crushed, then try it. If they have been crushed for longer than 15 minutes, leave them where they are.

"Removing them can suddenly release a flood of toxins which build up in crushed limb."

Again, do not feed the injured party food or drink and if they appear to be unresponsive and not breathing, try CPR.

Apply pressure to wounds and only move them if you absolutely need to.