The difference between upper respiratory tract infection and lower respiratory tract infection.

Written by Li Jian Wu

Pulmonology

Updated on September 08, 2024

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The difference between upper respiratory tract infections and lower respiratory tract infections mainly lies in the location of the infection. The pathogen causing the infection could be the same. If an upper respiratory tract infection is not treated in time, the pathogen might infect downwards and cause a lower respiratory tract infection. Compared to upper respiratory tract infections, which are commonly seen in clinical practice, lower respiratory tract infections are less common. Therefore, whether it is an upper or lower respiratory tract acute inflammation, sufficient and sensitive antimicrobial drugs should be chosen according to the treatment course for proper treatment.

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Written by Wang Xiang Yu

Pulmonology

1min 14sec

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Upper respiratory tract infection complications

Upper respiratory tract infections, also known as URIs, refer to acute inflammation occurring from the external nostril to the lower edge of the cricoid cartilage, commonly affecting the nasal cavities, pharynx, and larynx. Most patients with upper respiratory infections experience mild symptoms and a short disease course, generally having a good prognosis with self-recovery. However, a small subset of upper respiratory tract infections can lead to complications such as sinusitis, otitis media, and tracheobronchitis. Some infections that manifest primarily as pharyngitis can lead to secondary conditions like rheumatic fever and glomerulonephritis caused by Streptococcus. In these cases, the prognosis may not be as favorable. Additionally, a small number of patients might develop more severe illnesses, such as viral myocarditis, which significantly affects the prognosis. Therefore, upper respiratory tract infections should not be underestimated, and proactive prevention and treatment are essential.

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Written by An Yong Peng

Pulmonology

54sec

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Can you eat oranges with an upper respiratory tract infection?

Upper respiratory infections can include orange in the diet; these infections are usually viral, and typically there are no specific therapeutic drugs available, only symptomatic treatment is provided. Additionally, patients should also consider eating some fruits and drinking more plain water while maintaining a light diet; fruits like oranges and apples are suitable. Furthermore, patients with severe symptoms of upper respiratory infection may also need to use some cold medicines to alleviate their symptoms. Generally, upper respiratory infections are self-limiting, and patients can gradually recover with symptomatic treatment and dietary adjustments mentioned above. However, it is important to note that some upper respiratory infections may be bacterial, such as acute suppurative tonsillitis, which is a bacterial infection and requires anti-infection treatment.

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Written by Wang Chun Mei

Pulmonology

53sec

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Is an upper respiratory tract infection easy to recover from?

Upper respiratory tract infections are clinically categorized as respiratory diseases and occur at a very high frequency. Patients with upper respiratory tract infections generally recover easily as long as their immune system is in good condition. Most upper respiratory infections are caused by viruses, and patients with decent immune function can often recover without medication within about a week. However, some infections in the upper limbs, which may be caused by bacteria or mycoplasma, present various clinical symptoms such as nasal congestion, runny nose, fever, and cough. Patients like these generally require appropriate anti-infection treatment, as well as medication to combat the mycoplasma, and their recovery might take slightly longer.

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Written by Li Jian Wu

Pulmonology

41sec

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Upper respiratory tract infection symptoms

The typical symptoms of an upper respiratory tract infection include nasal congestion, coughing, swelling and pain in the throat, phlegm, and difficulty breathing. During the acute phase, it can also cause chills, high fever, and loss of appetite. It is important to determine whether the infection is caused by bacteria, a virus, or mycoplasma, and to treat it accordingly with targeted antibiotics or antiviral medications. Avoid eating highly irritating foods, measure body temperature twice daily, and treat the cause while managing the symptoms. Generally, one can gradually recover back to normal health within three to seven days.

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Written by Hu Bai Yu

Pulmonology

1min 14sec

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Can respiratory infections heal on their own?

Respiratory infections can be self-healing, usually in individuals who are physically strong or have a robust immune system. During an infection, drinking plenty of water, resting adequately, timely replenishing vitamin C, eating fresh fruits and vegetables, exercising appropriately to enhance physical fitness, and dressing appropriately according to the weather can potentially lead to self-healing. However, for elderly and frail patients, the self-healing rate from respiratory infections is very low. They should be treated under the guidance of a doctor, actively taking anti-inflammatory and anti-infection medications, as well as cold remedies. It is also important to ventilate rooms frequently to maintain fresh air circulation indoors, avoid overly dry environments, and keep indoor temperature and humidity at comfortable levels. Additionally, it is advisable to avoid spicy, greasy, cold, and irritating foods, and not to consume seafood to prevent exacerbating cold symptoms by promoting the production of phlegm.