Give 8, milliliters of panda blood in 2 years. What is panda blood?

I feel that blood donation is addictive. Some people can really keep donating blood for years, and even control their diet and exercise in order to maintain the quality of blood. Recently, Wuhan media reported about Mr. Yu's blood donation in the past 2 years. His blood belongs to panda blood. At the age of 4, he has donated 8, milliliters of blood for free in recent years and won the national gold medal for blood donation.

1. Donate 8, ml of panda blood

"Wow, the national blood donation bonus award!" Yesterday, in the workshop of Wuhan EMU in Qingshan District, Wuhan, the news that Yu Zhou won the award from the Ministry of Health quickly spread among colleagues, and everyone praised him.

4-year-old Yu Zhou is a ground mechanic in Wuhan EMU of Wuhan Railway Bureau, also known as "EMU doctor". This year is the 2th year that Yu Zhou donated blood.

He speaks slowly and the inspection equipment is meticulous. This middle-aged man, who looks thin and weak, is a precious RH-negative AB "panda blood" unpaid blood donor. In the past 2 years, he has donated nearly 8, milliliters of blood for free, and the amount of blood donated is twice that of an adult.

After the first blood donation, his cell phone never turned off

"My first blood donation was in 1998." Yu Zhou told reporters that he had just graduated from the railway technical secondary school and was waiting for the conscription results at home. One day, he went to a classmate's house in Baofeng Road, Hankou to play. When he passed a blood donation car in front of Wuhan Blood Center, he went in out of curiosity and finished donating blood for the first time in his life. Unexpectedly, this blood donation changed his life.

a week later, the staff of the blood center called and told him, "Your blood type is rare. Have you seen the TV series" Blood Suspicion "? You and the heroine Xing Zi have the same blood type, RH negative. This kind of blood is too precious to be stored for a long time. Please pay attention to safety and cherish your body. When necessary, I hope you can provide life assistance to friends with the same blood type. " Yu Zhou agreed without hesitation.

From that moment on, in 2 years, Yu Zhou's mobile phone became a life hotline, which was turned on 24 hours a day. As soon as he received the call, he rushed to the blood station to donate blood. How many people have he saved in these years? Yu Zhou said that he has never counted, at least there are more than twenty.

In p>2, after being demobilized from the army, Yu Zhou was assigned to Wuhan Railway Bureau and became a railway worker. Jamlom, a colleague of Yu Zhou's, said that Yu Zhou was an only child. After his parents knew about the blood donation, he was worried that frequent blood donation would be bad for his health. Later, he continued to donate blood without telling his family. As long as the blood center calls, whether it is day or night, he will arrive at the first time; Whenever he changes his contact information or address, he also informs the blood center at the first time.

The most special time was the day before New Year's Eve in 213. At that time, his son was only over one year old. After receiving the call from the blood center, he put down his son and prepared to rush there, but his son was crying as long as his father hugged him. "Finally, I had to hold my grandson, and our family of three rushed to donate blood." After arriving at the scene, his mother-in-law was also moved and offered her blood for the first time.

Relatives are also "panda blood" and donated blood after his mobilization.

"Our family moved twice and once, and dozens of blood donation card and honorary certificates have been lost, but my contact information will always be known to the blood center." In 21, Yu Zhou chose to join the rare blood group Mutual Aid Association of Wuhan Blood Center and participated in voluntary blood donation more frequently. He also took to the streets with other blood donors to encourage more people to participate. Because "panda blood" is recessive inheritance, Yu Zhou encouraged his family to test the blood type. When he found out that his cousin and cousin were also "panda blood", he repeatedly did their ideological work. Under the constant persuasion of Yu Zhou, the two also joined the blood donation team and often participated in support activities.

After leaving the army, Yu Zhou still pays attention to physical training. Running and sleeping more are his "health classics", and he is determined to stay away from alcohol and tobacco. He said, "Drinking alcohol will have an impact on liver function. If you suddenly need to donate blood after drinking alcohol at this time, it will be a life-threatening event."

The reporter learned that the total blood volume of the human body accounts for about 7% to 8% of the body weight, and the total blood volume of an adult is about 4, to 5, ml. Yu Zhou donated nearly 8 ml of blood for free, which is equivalent to changing the blood in his body twice for him who is not physically strong.

When asked about Yu Zhou's future plans, Yu Zhou scratched his head and said with a smile, "The age requirement for blood donation is 18 to 55 years old. As long as my physical condition permits, I will stick to it!"

According to relevant persons of Wuhan Blood Center, apart from the common types A, B, O and AB, human blood types are divided into Rh positive and RH negative. In China, Rh-negative blood only accounts for .34%, which is a very rare blood type, known as panda blood, while Rh-negative AB blood type is the panda in panda blood, accounting for only .34% of the national population and three ten thousandths of the Han population, which is a very precious blood type. At present, there are only fifty or sixty Rh-negative AB volunteers in Wuhan rare blood group Mutual Aid Association. These volunteers are always on call, regardless of return, which is touching.

2. What does panda blood mean?

Panda blood is RH blood type, with few Rh (-) people, and the proportion of Han people is only three thousandths. Individual ethnic minorities can be higher, and some are more than 2%. Generally speaking, it is rare and rare. Rh blood group system (Rhesus), which means rhesus monkey blood group system, is second only to ABO blood group system in importance, and mainly refers to whether there is "RhD antigen" on the surface of human red blood cells, and Rh- is called "Rh negative" and "Rh recessive", which means that human red blood cells have no "RhD antigen". If a Rh-negative mother gives birth to a Rh-positive fetus, once the Rh factor on fetal red blood cells enters the maternal blood for some reasons (such as bleeding caused by placental exfoliation), the mother will produce anti-agglutinin (anti-Rh antibody). Anti-agglutinin enters fetal circulation through placenta, which causes fetal red blood cells to agglutinate and destroy, which can lead to severe anemia and even death of fetus.

In China, more than 99% of people with Rh blood group are positive, so hemolytic reaction due to Rh blood group incompatibility during blood transfusion is rare. But less is not equal to nothing. If the recipient of Rh negative blood type is transfused with Rh positive blood type, it will cause immune hemolysis. The correct way should be that the blood type of the recipient and the donor should be the same, that is, they are both Rh negative blood types.

Rh-negative blood group is different from blood groups A, B, O and AB. The population distribution of the latter blood group is relatively even, and the blood sources of several blood groups are easy to find. Rh-negative blood group is a kind of rare blood group, accounting for less than 1% of those with Rh blood group. It is understood that among the 3 million people who participated in blood donation in a city, only 3,3 were Rh-negative. The probability of Rh negative in clinical surgical patients is 5 ~ 7/1. In contrast, blood with Rh negative blood type is very precious.

However, there are more people with RH negative blood in ethnic minorities. Among the people in China, the Miao nationality has the largest proportion of Rh- negative blood, reaching 13%, and the distribution of RH-in Xinjiang Uygur and other ethnic minorities is 5%. One percent of Mongolians; The proportion of Han people is very small, accounting for only three thousandths, belonging to rare blood group. If ABO and Rh blood group systems are considered at the same time, the chances of finding AB-type Rh(-) homotypic people in the Han population are less than three ten thousandths, which is very rare.