Câu hỏi:
18/03/2020 750* Read the following passage and mark the letter A, R, C, or D on your answer sheet to indicate the correct answer to each of the questions from 24 to 30.
People have been donating blood since the early twentieth century to help accident victims and patients undergoing surgical procedures. Usually a pint of whole blood is donated, and it is then divided into platelets, white blood cells, and red blood cells. People can donate blood (for red blood cells) about once every two months.
Transfusing the blood from the donor to the recipient is straightforward. It involves taking the blood from a donor’s arm vein by means of a hypodermic syringe. The blood flows down from the container by gravity. This is a slow process and may last as long as 2 hours to complete the infusion of blood into the recipient. The patient is protected from being infected during the transfusion. Only sterile containers, tubing, and needles are used, and this helps ensure that transfused or stored blood is not exposed to disease causing bacteria.
Negative reactions to transfusions are not unusual. The recipient may suffer an allergic reaction or be sensitive to donor leukocytes. Some may suffer from an undetected red cell incompatibility. Unexplained reactions are also fairly common. Although they are rare, other causes of such negative reactions include contaminated blood, air bubbles in the blood, overloading of the circulatory system through administration of excess blood, or sensitivity to donor plasma or platelets.
Today, hospitals and blood banks go to great lengths to screen all blood donors and their blood. All donated blood is routinely and rigorously tested for diseases, such as HIV, hepatitis B, and syphilis. When the recipient is a newborn or an infant, the blood is usually irradiated to eliminate harmful elements. Donated blood is washed, and the white blood cells and platelets removed.
Storing the blood sometimes requires a freezing process. To freeze the red blood cells, a glycerol solution is added. To unfreeze the, the glycerolis removed. The ability to store blood for long periods has been a boon to human health.
All of the following are mentioned as potential negative reactions to transfusion EXCEPT__________.
Đáp án chính xác
Câu hỏi trong đề:
30 đề thi thử đề thi thử THPTQG môn Tiếng Anh có lời giải chi tiết !!
Sách mới 2k7: Tổng ôn Toán, Lí, Hóa, Văn, Sử, Địa…. kỳ thi tốt nghiệp THPT Quốc gia 2025, đánh giá năng lực (chỉ từ 110k).
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Trả lời:
Giải bởi Vietjack
Chọn B Câu đề bài: Tất cả những điều sau đây được đề cập đến như là những phản ứng tiêu cưc tiềm tàng đối với truvền máu NGOẠI TRỪ _____________. .
Đáp án B: Bong bóng khí trong máu
Các đáp án còn lại:
A. nhạy cảm với bạch cầu người tặng
C. dị ứng
D. không tương thích tế bào hồng cầu
Thông tin trong bài:
Negative reactions to transfusions are not unusual. The recipient may suffer an allergic reaction or be sensitive to donor leukocytes. Some may suffer from an undetected red cell incompatibìlity.
—» Các phản ứng tiêu cực đối với truyền máu là không hiếm gặp. Người nhận có thể có phản ứng dị ứng hay nhạy cảm bạch cầu của người tặng. Một vài người cũng gặp phải sự không tương thích tế bào hồng cầu không được phát hiện.
Nhà sách VIETJACK:
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