Is there a lot of phlegm in pulmonary embolism?

Written by Wang Chun Mei
Pulmonology
Updated on September 05, 2024
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Pulmonary embolism is a relatively common acute disease in clinical practice. It usually occurs when blood clots from the veins in the legs or pelvis detach, travel through the bloodstream to the pulmonary arteries, and cause an embolism. The onset of this disease is often very sudden. Due to different triggers, the clinical symptoms vary. Typical symptoms of pulmonary embolism include difficulty breathing, chest pain, coughing up blood, and coughing. Coughs are often dry, and patients may also have a small amount of white sputum. Some patients might even experience wheezing and other clinical symptoms. Therefore, the occurrence of excessive sputum is rare in patients with pulmonary embolism.

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Written by Yuan Qing
Pulmonology
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What are the symptoms when pulmonary embolism becomes severe?

Pulmonary embolism can vary in severity, with serious cases primarily causing unstable vital signs. The disease primarily arises from venous thrombi in the venous system, which travel with the venous blood back to the right heart, and then with the blood flow from the right heart back to the aorta. If the thrombus is relatively large, it can easily become lodged in the pulmonary artery, forming a pulmonary embolism. The symptoms of pulmonary embolism can range from mild to severe. Based on the patient's symptoms and vital signs, pulmonary embolism is categorized into low risk, intermediate risk, and high risk. Low and intermediate risk typically indicate that the patient's vital signs are relatively stable, with normal blood pressure, heart rate, and pulse oximetry saturation. In severe cases, patients may exhibit noticeable symptoms such as coughing up blood, difficulty breathing, low blood pressure, shock, and oliguria. These represent the more severe cases of pulmonary embolism.

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Written by An Yong Peng
Pulmonology
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Can a pulmonary embolism be detected by an X-ray?

Pulmonary embolism cannot be detected by X-ray. Although in rare cases, some signs might appear on an X-ray, such as localized sparse lung markings, these signs are typically not characteristic. For conditions like pulmonary embolism, color Doppler ultrasound can be used to assist in diagnosis. If the ultrasound suggests deep vein thrombosis in the legs along with pulmonary hypertension, it indicates a high possibility of pulmonary embolism. Additionally, testing for D-dimer and blood gas analysis can also help in diagnosing pulmonary embolism. CT pulmonary angiography can also be used to diagnose the condition. CT and pulmonary angiography have a high diagnostic value for pulmonary embolism, and most cases can be definitively diagnosed through these tests.

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Written by An Yong Peng
Pulmonology
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Can a pulmonary embolism cold cause a fever?

Pulmonary embolism combined with a cold can indeed cause a fever, which is a relatively common occurrence. However, it typically results in a low-grade fever. Additionally, it is important to note that if pulmonary embolism is combined with pulmonary infarction, it can also lead to a fever, usually manifesting as a low-grade fever. Therefore, pulmonary embolism itself can potentially cause a fever. Furthermore, it is crucial to be aware that if pulmonary embolism leads to a fever, it should not be misdiagnosed as a common cold or pneumonia. Especially in patients with concurrent pulmonary infarction, the presence of a fever, and subpleural patchy shadows seen on chest CT can resemble the manifestations of pneumonia. Care must be taken to avoid misdiagnosis as pneumonia, which could delay treatment for the patient and potentially lead to severe consequences.

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Written by An Yong Peng
Pulmonology
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How is pulmonary embolism caused in young people?

Common causes of pulmonary embolism in young people include the following aspects: First, fractures, especially fractures of the lower limbs, are prone to deep vein thrombosis and pulmonary embolism; Second, thrombophilia, some young people due to congenital genetic factors, which can lead to easy formation of blood clots in arteries or veins, and potentially increase the incidence of pulmonary embolism; Third, prolonged immobilization, such as long periods of sitting, can lead to slow blood flow in the lower limbs, which might result in deep vein thrombosis and pulmonary embolism; Fourth, other factors like severe infections could also trigger pulmonary embolism; furthermore, the risk of pulmonary embolism is also higher in pregnant women during the perinatal period.

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Written by Yuan Qing
Pulmonology
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Can a secondary recurrence of pulmonary embolism be treated?

Pulmonary embolism, even if it recurs for the second time, is treatable, but the approach should differ from the first recurrence. It's vital to determine the cause of the pulmonary embolism, although many patients with this condition do not have an identifiable cause. For such patients, long-term oral anticoagulants might be recommended. With long-term use of oral anticoagulants, the likelihood of thrombosis, especially in the venous system, significantly reduces. This means that the chance of recurrence in patients also decreases considerably. However, if the cause can be identified, it is better to address and eliminate it. For instance, if the cause is long-term use of oral contraceptives or the presence of varicose veins, these primary or secondary factors should be resolved. The treatment should not just focus on anticoagulation or thrombolytic therapy, as there could still be a possibility of a future pulmonary embolism recurrence.