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   "Sister, you go." Lei Lei grabbed her mother's hand and prevented her from grabbing her sister's clothes. Sister's words just made her stronger.

   Leilei's mother was so puffed up that she could only sit back in the chair first. After a while, she peered with the same curiosity as the rest of the passengers. What kind of patient will it be this time?

   When her daughter was sick just now, no one said she was sick.

  Adults have a higher tolerance for pain than children. In particular, some elderly people who bear hardships and stand hard work often endure minor illnesses and pains into serious illnesses, just to keep their family members from worrying. This old grandmother couldn't bear it until she was discovered by her daughter who was by her side.

   walked quickly to the elderly patient, Xie Wanying glanced at the patient, the alarm bell rang loudly, and she felt as bad as the nurse.

   "Should she lie down?" The flight attendant again made the same suggestion as before, thinking that this time the patient was seriously ill and should need to lie down.

   "No, she can't lie down." Xie Wanying and the nurse said in unison.

   Heart failure patients cannot lie down. There is a proper term in medicine to describe this special performance called orthopnea.

   To explain this phenomenon, we need to understand what heart failure is. Heart failure is not an independent disease, but a group of clinical manifestations. Many cardiovascular diseases develop to a certain degree and will show a typical symptom group. The causes of these symptoms have been studied by medical scientists through the study of the physiological structure and function of the human body. Decreased venous blood flow to the heart, the technical term is called decreased blood return to the heart. The reduction in the amount of blood returning to the heart leads to stasis of venous blood that cannot return to the heart in the human venous system. The blood pumped by the heart to the body's arterial system is then reduced, showing arterial hypoperfusion.

According to the principle mentioned above, the heart function of patients with heart failure is not good. If they lie flat, the normal venous blood return will increase the burden on the heart, and the patient cannot accept it. Therefore, the patient will behave as if he wants to sit up, so that the blood returning to the heart is stored in the lower extremities. , to make your heart feel better. This is where orthopnea comes from.

   It can be seen that edema of both lower extremities is also one of the common symptoms of heart failure patients.

  The old grandmother waved her hand and said that she did not need to lie down. Obviously, she had difficulty breathing and could not lie down. It was a manifestation of orthopnea with acute heart failure.

  The nurse rolls up the patient's trouser legs to expose the patient's ankle.

   If there is edema, the skin around the ankle is weak, and the medical staff can tell if you touch it and press it.

  This old lady is strange and fat, but the medical staff's fingers pressed against her skin, and there were no indentations that can usually be seen with edema.

  Lu Xin felt like scratching her head.

   Xie Wanying had a little understanding of the patient's situation, and only listening to the local accent of the elderly's daughter could confirm certain things.

  A domestic province is not small, and it can be regarded as a small country internationally. There are differences in different parts of the province, each with its own local accent and customs. For doctors, distinguishing where a patient comes from is not to treat patients differently, but to help doctors identify whether it is an endemic disease.

  Each place has its own epidemic species due to different climate, soil and dietary sources.

   (end of this chapter)