Subscribe
106
Yuan Qing
Pulmonology
About me
Yuan Qing, male, associate chief physician, associate professor, medical doctor, Young Member of the Anti-Infection Branch of Beijing Pharmacological Society.
1996.7-2001.7 Shanxi Medical University, Bachelor of Clinical Medicine.
2001.7-2004.7 Master's degree student in the Department of Infectious Diseases, Beijing Friendship Hospital, affiliated to Capital Medical University.
2004.7-2009.7 Resident physician in the Department of Critical Care Medicine, Beijing Friendship Hospital, affiliated to Capital Medical University.
2006.7-2009.7 Doctoral student in the field of infectious diseases and critical care medicine at Capital Medical University.
2009.7-2014.3 Beijing Century Hospital, Department of Respiratory Medicine.
2014.4-present Beijing Century Hospital, Cadre Medical Department.
He has received further training in respiratory critical care at China-Japan Friendship Hospital. Engaged in clinical, teaching, and research work on respiratory infectious diseases, respiratory critical conditions, respiratory endoscopy, Chronic Obstructive Pulmonary Disease (COPD), and asthma. Proficient in respiratory medicine, particularly in theoretical knowledge, new developments, new technologies, and clinical diagnosis and treatment in the mentioned areas. Principal investigator of 1 bureau-level research project and 3 internal projects at the hospital. Co-author of 2 specialized books, with over 20 research papers published at home and abroad, including 5 papers indexed by SCI.
Proficient in diseases
Respiratory system infections, asthma, respiratory failure, various difficult-to-treat diseases, and the diagnosis of thoracic imaging particularly in benign and malignant tumors!
Voices
How long does it take to recover from the flu?
Influenza, also known as the flu, is usually a respiratory disease caused by influenza virus infections in humans. It is characterized by being self-limiting, which means that patients can improve without treatment. The flu is no exception; it tends to be self-limiting but only in people with normal immune function. Typically, patients can recover on their own in about 7-10 days. However, for some specific populations like the elderly, children, pregnant women, or those with underlying diseases, the duration of the flu may be extended and may lead to severe complications.
Is the flu contagious?
Influenza refers to a disease characterized primarily by coughing, sputum production, sore throat, and fever, after the respiratory tract has been infected by the influenza virus. Additionally, influenza may present symptoms such as nausea, abdominal pain, and diarrhea. The infectiousness of influenza is mainly transmitted through the inhalation of droplets from one person to another within a population. In China, influenza is a legally mandated Class B infectious disease, and is indeed contagious. Therefore, if you notice individuals around you with fever, cough, or sputum production who are suspected of having influenza, isolation should be implemented. Moreover, it is advisable to avoid crowded places to reduce the possibility of being infected by influenza. Furthermore, vaccination during the flu season is also an effective way to protect against influenza.
Can I run if I have a cold and a headache?
The common cold is primarily a clinical disease characterizing symptoms such as upper respiratory tract infections by various microbes, resulting in coughing, sputum production, nasal congestion, runny nose, and fever. In severe cases, some patients might also experience headaches. Typically, after the onset of a cold, it is generally recommended that patients consume nutrient-rich foods and keep warm while avoiding exercise. If a headache occurs due to the cold, it is advised to rest at home, take some cold medicine to alleviate the headache, and wait until the body has recovered before engaging in activities like running. It is not recommended to perform intense physical activities during the acute phase of a cold when feeling unwell, as this might exacerbate the condition. (The use of medication should be under the guidance of a doctor.)
The difference between pulmonary embolism and pulmonary edema
The difference between pulmonary embolism and pulmonary edema lies in their mechanisms of onset, clinical manifestations, and treatments; they are completely different diseases. Pulmonary embolism primarily occurs when thrombi from the inferior vena cava or superior vena cava, or other emboli, travel with the bloodstream to the right heart and then block the pulmonary artery. The symptoms mainly include coughing, chest pain, difficulty breathing, and coughing up blood. On the other hand, pulmonary edema is mostly due to left heart dysfunction, caused by coronary artery disease or acute heart failure, leading to the inability of the pulmonary blood to return to the left heart. This results in an excessive retention of blood in the lungs, causing edema in the alveoli and interstitial space of the lungs. The symptoms are primarily characterized by difficulty breathing, coughing, and pink frothy sputum. The treatments for the two are also entirely different: pulmonary embolism is primarily treated with thrombolysis, while pulmonary edema is mainly treated by correcting heart function. Thus, it is crucial to differentiate between these two diseases.
What should I do if my leg swells after a pulmonary embolism?
After a pulmonary embolism, swelling in the legs can occur, and this situation is very likely secondary to right heart dysfunction following the pulmonary embolism. At this time, the main treatment should focus on the pulmonary embolism. The mechanism of pulmonary embolism mainly involves thrombi from the venous system, which travel with the blood flow to the right heart and then are lodged in the pulmonary artery, causing a sudden increase in the load on the right heart and leading to right heart failure. Consequently, the blood flow from the superior and inferior vena cava cannot return to the right heart. If the blood flow in the inferior vena cava is blocked peripherally, it can cause swelling in the legs. Therefore, the primary focus should still be on treating the underlying disease, by using anticoagulants or thrombolytic therapy. Swelling in the legs can also be alleviated with diuretics, but it is crucial not to move the lower limbs carelessly, as there might still be thrombi present, and moving the limbs could lead to the dislodgment of new thrombi.
Clinical manifestations of bronchial asthma
Bronchial asthma, commonly known as asthma, involves chronic airway inflammation of the bronchi with the participation of various chronic inflammatory cells. Patients primarily exhibit symptoms such as episodic wheezing, breathlessness, chest tightness, and coughing. These symptoms usually occur in the early morning and at night, and can improve on their own or with medication. Generally, the occurrence of bronchial asthma is related to genetic factors and contact with allergens, with most patients having some genetic predisposition. Once bronchial asthma develops, it is advisable to avoid allergens, such as pollen, dust mites, pet dander, etc. Generally speaking, the prognosis for bronchial asthma is very good.
Can pneumonia symptoms include swollen feet?
Pneumonia generally does not cause swelling of the feet. Pneumonia is mainly due to various infectious or physicochemical factors that damage our alveoli, causing inflammation in the lungs, which leads to pneumonia. The main symptoms of pneumonia include coughing, fever, difficulty breathing, chest tightness, and expectoration. Generally, swelling of the feet does not occur. The occurrence of foot swelling is mostly due to right heart failure or poor venous flow in the cavity, and the stagnation of blood flow in the lower limbs leads to this edema. If this occurs, it is important to consider whether it is due to heart failure in the elderly, or conditions such as kidney or liver diseases leading to hypoalbuminemia, and relevant tests should be conducted. This is not a complication caused by pneumonia itself, but rather a problem with some other organs of the patient.
How long does influenza IgM positive last?
Influenza IgM actually refers to a globulin released by our immune system after influenza enters our body and is recognized by the immune system. This globulin encapsulates or localizes the virus, aiding the phagocytic cells in our body to kill it. This is called IgM. IgM indicates the presence of the influenza virus and a recent invasion into the human body. It is a marker in body fluids and generally persists for about 14-20 days after infection. It does not provide long-term protection to our body and is merely a marker for the acute phase, disappearing once the situation stabilizes.
Can pneumoconiosis cause coughing up blood?
Pneumoconiosis can cause hemoptysis, and the reasons are mainly related to secondary pulmonary fibrosis or secondary pulmonary hypertension, as well as infection with pulmonary tuberculosis. Pneumoconiosis, as the name suggests, is a disease caused by the long-term exposure to a large amount of dust, leading to the accumulation of dust in the lungs. This disease primarily causes fibrosis of the lungs, and due to the damage it causes to the lung structure, it makes tuberculosis infection more likely. If pulmonary fibrosis or pulmonary hypertension occurs, this can lead to hemoptysis. Additionally, if pulmonary tuberculosis coexists, and cavities form in the tuberculosis, this can also lead to hemoptysis. More accurately, it should be called expectoration of blood since it is important to distinguish this from gastrointestinal bleeding. Thus, it is entirely possible for pneumoconiosis to cause expectoration of blood.
Could coughing up blood-stained sputum be laryngeal cancer?
Coughing up phlegm with blood does not necessarily indicate throat cancer. In fact, coughing up phlegm with blood refers to the presence of blood in the phlegm, which should not be confused with coughing up blood. There are many reasons for blood in the phlegm, and the first step is to rule out whether the blood is coming from the nose or the mouth. The nose is connected to the throat through the pharynx. If there is bleeding in the nose, it can also enter the pharyngeal area. Therefore, when blood is observed in the phlegm, it might be mistakenly believed to come from the lower respiratory tract. Additionally, bleeding from the oral cavity or teeth can also mix with the phlegm. After ruling out these two sources, the blood might originate from the lower respiratory tract. The common reasons for blood from the lower respiratory tract include vascular dilation, tuberculosis, and bronchial lung cancer. These conditions require medical examination to confirm. However, it is impossible to diagnose based on symptoms alone. But at least, coughing up phlegm with blood should not be immediately attributed to lung cancer, as there are many diseases that can cause this symptom.