Drinking black tea calmly at Hogwarts

Since entering December, Hogwarts students have recently discovered some new changes in the classroom.

During Potions class, Professor Snape's lectures were much more detailed than before, and his mouth was not so venomous.

If it wasn't for his unwashed and greasy hair all the time, the students would have wondered if this Professor Snape was a fake.

In other classes, Hagrid was sometimes seen sitting in the last row of the classroom, recording something in a notebook from time to time.

"Because Professor Dumbledore talked to them."

When talking about this topic with the students in the common room, Professor Zhang said so.

With the Christmas break just around the corner, a group of students quickly shifted the conversation to the upcoming holiday season.

Zhang Xu has already asked someone to help book the plane ticket back to China, and he will leave as soon as the holiday comes. Even if Voldemort leads the Death Eaters to attack Hogwarts, he can't stop him.

Dividing line

"You have a new message, please check it" xn

Zhang Xu, who was sleeping soundly, was awakened by a ringing bell.

Confused, he got up and found that the communicator used by the professor was ringing.

Being woken up in the middle of the night, it must not be someone holding red wine to ask me to watch the moon.

Zhang Xu took the communicator and found that it was a text message from Dumbledore, telling him to rush to the principal's office immediately.

Zhang Xu suddenly remembered what was going on, immediately put on his robe, wet a towel with his magic wand, wiped his face, and ran out of the dormitory.

When he came to the door of the principal's office, Zhang Xu saw Professor McGonagall walking anxiously with a group of red heads, and Percy was also inside.

Behind the group of red heads, Scarlett came along with him.

Walking into the office, Dumbledore immediately said to Zhang Xu: "Zhang, Arthur is seriously injured. The news from St. Mungo is not optimistic. I need your help."

After Zhang Xu nodded immediately, Dumbledore continued: "Helleson, please take Zhang to St. Mungo's, and I will ask Dai Lisi to notify St. Mungo's therapist to cooperate with you."

Hearing that the situation was urgent, Zhang Xu and Scarlet didn't say much, and turned and left after saying "yes".

After the two quickly walked out of the range of Hogwarts, Scarlet grabbed Zhang Xu's hand, and then used apparition to lead him to St. Mungo's Hospital for Magical Injuries and Injuries.

Dumbledore knew that Zhang Xu had a trump card in detoxification, so he learned from Harry that Arthur Weasley was bitten by a snake, and from the portrait of Dai Lisi Dewente that Arthur Weasley's wound was very serious. It was difficult, so I asked Zhang Xu to help.

Zhang Xu had just remembered that Mr. Weasley was bitten by Voldemort's snake tonight, so he agreed to Dumbledore's request without saying a word.

Arriving at St. Mungo's Hospital for Magical Injuries and Injuries, under the leadership of the therapist waiting for them in the hall, Zhang Xu and Scarlett came to the medical room where Mr. Weasley was being treated.

Zhang Xu walked into the medical room while Scarlet waited outside.

Mr. Weasley was lying on the hospital bed with his shirt off.His face was morbidly pale from blood loss.

Several healers were trying various methods to stop the bleeding from Mr. Weasley's rib wound.

A bucket next to the hospital bed was almost full of blood-stained gauze.

Seeing Zhang Xu coming in, one looked to the Lord

The man who treated the therapist came over.

Although the reinforcements sent by Dumbledore were too young, the healer did not despise them.

After all, Lao Deng's signboard is there, and they trust Lao Deng more than themselves on technical issues.

There is no such plot as in the novel where doubts and disputes are slapped in the face and the head is accepted, and the patient dies due to the delay in rescue time. The therapist immediately introduced Mr. Weasley's condition to Zhang Xu.

"From the wound, the patient was bitten by a huge snake, and the ribs were bitten off. The wound was unable to stop the bleeding due to toxins." The therapist frowned and said, "At present, the patient is bleeding too much. The situation is very dangerous. The patient's body is very weak, and it is difficult for the blood-tonifying medicine he drank to work."

"I'll deal with the toxin." Zhang Xu said, "You can try to stop the bleeding with local freezing."

"If possible, I suggest giving the patient a blood transfusion to prevent the patient from bleeding and dying."

"A Muggle method?" asked the healer. "You would use this method. I think we can try it."

"I can't, but I can find someone who will come." Zhang Xu said, "That person is the parent of a Hogwarts student."

Zhang Xu remembered hearing from Hermione that her father was a dentist and her mother was a physician. They had never eaten pork or seen a pig running.

The Grangers have a good relationship with the Weasleys, and I believe they will help.

And they are the parents of wizards, so they don't have to worry about being erased by the Ministry of Magic.

Zhang Xu took out a black box wrapped in thick rubber on the outside. This is an anti-magic interference box, which can ensure that the electronic products inside will not be damaged by magic interference.

Zhang Xu handed over the box and phone book to Scarlett, and asked her to contact the Grangers immediately after leaving St. Mungo's Hospital and ask them to come and help.

The therapists began to stop Mr. Weasley's bleeding with partial freezing according to Zhang Xu's suggestion.This method Zhang Xu only saw a name on the Internet in his previous life, and he didn't know anything about the specific operation.

However, this is a magical world, and there should be no such thing as a successful hemostasis, but the patient dies.

And this looks more reliable than the ignited bullet flame in the novel to stop bleeding.

Zhang Xu walked to the other side of Mr. Weasley's wound, took out a first aid kit and put it on a shelf beside him, opened the first aid kit and took out a small syringe sealed in a plastic bag.

Then he took out another ampoule, cut open the bottle, sucked 0.1 antivenom with a syringe, and then added 1.9 physiological sodium chloride injection to make an injection.

Relying on the kung fu practiced by giving Wangcai injections at home, Zhang Xu injected 0.1 medicine into the palm of Mr. Weasley's forearm.

After the injection, Zhang Xu remembered that he forgot to disinfect Mr. Weasley's arm with alcohol.

Anyway, in this magical world, it should be fine without disinfection.Zhang Xu thought.

After giving Mr. Weasley the antivenom skin test produced by his own basilisk venom, Zhang Xu took out a test strip for rapid blood testing from the first aid kit. This test strip can detect bleeding types within 1 minute.

Seeing that Mr. Weasley had type O blood, Zhang Xu was relieved.Since Zhang Xu himself has type O blood, he can be given blood transfusions when necessary.

At this point the therapists had temporarily frozen Mr. Weasley's wound, and the bleeding had been stopped.

Next, Zhang Xu tested the blood types of the therapists who were willing to donate blood, waited for the skin test reaction of the antivenom serum, and waited for the rescue.