Respiratory tract infections.
How to monitor at home.
Fever, nasal congestion, runny nose, sore throat, cough, sputum production, muscle and joint pain.
Winter is the season of high incidence of respiratory infections, and the risk of concentrated fever caused by influenza viruses increases. Symptoms such as fever, nasal congestion, runny nose, sore throat, cough, sputum production, muscle and joint pain suggest that respiratory tract infection may occur, and it is recommended to monitor the following aspects at home
Symptom monitoring. 
Symptom monitoring includes measuring body temperature, pulse, respiratory rate, etc. If you have a fever of more than 385. If the duration is more than 3 days, the respiratory rate exceeds 24 times per minute, the chest tightness and breathlessness cannot be relieved, and the cough is accompanied by chest pain, purulent sputum and bloody sputum, etc., you should seek medical attention in time.
Refers to oxygen saturation monitoring.
If you have a digital pulse oximeter at home, you can monitor your digital oxygen saturation by yourself. If it persistently falls below 93%, it is recommended to seek medical attention promptly.
Pathogen detection. 
Drink plenty of warm water, open windows frequently for ventilation at home, and keep indoor air fresh. You can use the new coronavirus, influenza virus, and mycoplasma test agent to perform antigen testing on your own, and the test results need to be combined with clinical indications, and you can consult your doctor for details.
Surveillance of pre-existing underlying diseases.
Some respiratory tract infections can lead to the instability of the original underlying disease, and it is necessary to pay attention to whether the symptoms of the underlying disease are aggravated, and strengthen the monitoring of blood pressure, blood glucose, urine output, weight, etc.
How to monitor your temperature at home
Ongoing temperature monitoring can help assess changes in your condition and determine if there is a need for further medical attention. The body temperature is measured once a day in the morning and once in the evening, and the mercury thermometer can be measured for at least 5 minutes, and the electronic thermometer can be used to measure 2 times in a row to obtain a stable body temperature value. Record the body temperature value in time, so as to observe the trend of body temperature change and judge the development of the disease.
If the body temperature persistently exceeds 385°C, you should go to the hospital in time.
How to perform blood oxygen monitoring at home
Blood oxygen levels can be monitored at home with a fingertip pulse oximeter monitor. It should be detected separately in a calm state and after activity. Hands should be warm during the test, and the results of the blood oxygen test should be inaccurate when the fingers are cold. Blood oxygen testing should be done 2 to 3 times a day, and it can be tested at any time when the condition changes. If the oxygen saturation continues to be below 93%, it is recommended to go to the hospital immediately.
How to conduct at-home pathogen surveillance
Patients with symptoms of respiratory tract infection can purchase relevant test reagents for testing to identify pathogens that may be infected. At present, commonly used kits include: novel coronavirus antigen detection kit, influenza A and B virus antigen detection kit, Mycoplasma pneumoniae rapid test kit, etc. Please refer to the kit instructions for specific detection methods.
*: Healthy China.
Editor: Zhang Yang.
Editor: Chen Wei, Gao Yang.
Submission email : qxxcbxwk@163com