Section 151

She is still conscious and can answer questions temporarily.

But Zhang Yi estimates that she can only last fifteen minutes at most!

If the ambulance does not show up after fifteen minutes, or if the bleeding cannot be stopped, the old lady will most likely go into shock!

"Hold on, old lady, I've called an ambulance! Hold on!"

Then Zhang Yi walked to the middle-aged woman who fell on her head.

The human brain is actually very fragile.

Even if you drive at a speed of 20 mph on the road, as long as you fall on the back of your head, you will suffer a contusion at the least.

In severe cases, you will suffer from intracranial hematoma, subdural hematoma, skull fracture, intracranial hemorrhage or even death from the fall.

So this is why you must wear a helmet when riding a motorcycle or electric vehicle.

Once you hurt your head, it will be very troublesome to treat it.

"Sister? Can you hear me?"

Zhang Yi bent over and squatted beside the woman's ear and shouted.

"Uh... Uh..."

The old lady closed her eyes and sobbed twice, but could not answer specific questions.

Zhang Yi took a look at the amount of intracranial bleeding. Fortunately, it was not much at present, about 5 ml.

Hold on!

As long as the ambulance comes, the medicine will come too!

5 ml of bleeding is considered a small amount of bleeding. Once it exceeds 10 ml, or even reaches 20 or 30 ml, it will be dangerous!

The doctor can judge the amount of intracranial bleeding by the changes in the pupil.

Generally, when the amount of bleeding exceeds 20 or 30 ml, the pupil diameter will shrink. This is because the blood compresses the optic nerve.

And once the amount of bleeding is too large, causing increased intracranial pressure or brain herniation, the pupil will slowly dilate.

This is because the optic nerve is under pressure for a long time without relief, resulting in oculomotor nerve paralysis, and the pupil will slowly dilate.

At this time, the pupil's light reflex will gradually change from being present to being weak.

If it is right-sided intracranial bleeding, the pupil of the right eye will shrink or dilate.

If it is left-sided intracranial bleeding, the pupil of the left eye will shrink or dilate.

Which side has a problem with the size of the pupil indicates which side has a lesion in the skull.

Pupillary reaction is of positioning significance.

If both pupils change from constricted to dilated at the same time, and the light reflex gradually disappears, then there is basically no point in rescuing the patient.

This means that the patient is almost dead.

The disappearance of pupil light reflex is also one of the conditions for judging whether the patient is dead.

"Wow..."

Suddenly, the crying of the little boy with a broken bone next to him became more intense.

Zhang Yi looked up and found that several adults next to him wanted to pick up the child to check the injury.

Zhang Yi hurriedly stepped forward to stop them:

"Don't touch the child! This child's arm is obviously broken, and it has started to swell now! Don't touch him! Be careful not to cause a second injury!"

Everyone looked at Zhang Yi in confusion.

Who is this young handsome guy?

"I am a doctor, you can listen to my advice!"

Looking at everyone's puzzled eyes, Zhang Yi took the initiative to explain his identity.

Everyone nodded again and again.

Great!

There was a doctor at the scene of the car accident!

The savior is here!

"Oh! There's a doctor here! Great! Please help me check on my son. What should I do if he has a broken bone?"

The family member put the child down gently and asked Zhang Yi anxiously.

Zhang Yi turned his head and looked around.

Outdoors, patients with broken bones cannot be moved at will, because it is easy to cause secondary injuries or secondary fractures.

The fracture site must be fixed with a wooden board before the injured person can be moved.

But there are no wooden boards around!

However...there are wooden sticks under the trees on the boulevard to support the roots!

"Wooden sticks will work too!"

Thinking of this, Zhang Yi ran to the bottom of the tree and pulled out several wooden sticks.

The child's elbow joint is bent, so when fixing it, don't straighten your hand to fix it.

It should be bent directly to fix it, and the wooden sticks should be attached to the inside and outside of the elbow, and then fixed and suspended with gauze.

This is the most common and safest way to fix elbow fractures.

"Don't be afraid, kid, I'm a doctor, I'm here to help you."

Zhang Yi squatted next to the little boy and said softly.

At this time, the child's emotions must be stabilized, otherwise he will cry if he is too excited.

Struggling during crying can easily cause secondary injury to the fracture.

The child looked at Zhang Yi and continued to sob.

The child's father gently held the boy's other healthy hand and slowly comforted him.

The fracture of his left elbow has caused his elbow to be deformed and gradually swelled.

Then, Zhang Yi looked up and asked the onlookers around him:

"Excuse me, does anyone at the scene have something like a rope, or does any lady have a scarf or something like a scarf? I need it to fix the child's elbow here!"

"Scarf? I don't have it..."

"I, I, I! Doctor, do you think this is okay?"

"For fixing? Is clothes okay? I'll tear off this short-sleeved shirt on me."

The onlookers helped one after another.

"Okay! Anything that can fix it is fine!"

Zhang Yi nodded.

On the side, two young men took off their clothes and tore them into strips without thinking.

Isn't this a rope?

Then, Zhang Yi gently placed the stick on the child's elbow, parallel to the bent arm.

Then he used the clothes of the onlookers to wrap and secure it.

Finally, the rope was hung around the boy's neck with a distance of 30 centimeters.

"Don't move, kid. You'll be saved if you go to the hospital later."

This elbow fracture is quite serious, but fortunately, the nerves and blood vessels were not injured.

After dealing with the child, Zhang Yi immediately walked to the delivery boy.

While Zhang Yi was dealing with the child, several passers-by saw that the boy was seriously injured.

The delivery boy had been lifted from the wheel to an open area.

Zhang Yi was not sure whether a secondary fracture had occurred.

After a careful scan of the whole body!

I immediately thought it was not good!

The consequence of moving casually is that it is easy to cause secondary injuries!

Although Zhang Yi knew that these onlookers were kind...

But the fracture section was also moved during the moving process!

It happened to be inserted into the popliteal artery and the posterior tibial artery!

The popliteal artery is a branch of the femoral artery, located two centimeters below the posterior capsule of the knee.

The two arteries are very close!

A tibial fracture directly penetrated two blood vessels!