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Prevention of COPD: Provide a green channel for breathing

Aug 31, 2020

If you use one sentence to describe COPD, it is controllable and irreversible. COPD is a chronic lung disease that gradually weakens the respiratory function of patients. It is known as the most "invisible killer" among respiratory diseases.

 

The reason for saying this is that the human lungs have a strong compensatory ability, and the progress of COPD is hidden. Therefore, the disease characteristics are not obvious in the early stage and the "stable stage" of the disease development, but the symptoms suddenly appear in the "acute exacerbation stage" The appearance or the original symptoms deteriorate rapidly. What's more serious is that after each acute exacerbation of COPD, most of the patients' lung function will be further reduced, the condition will be irreversibly worsened, the disease process will be accelerated, and the risk of death will be increased.

 

The treatment of chronic obstructive pulmonary disease is a protracted battle just like hypertension, diabetes and other chronic diseases. After daily standard treatment, COPD can completely relieve symptoms and control the development of the disease through medication.

 

In clinical practice, some chronic obstructive pulmonary disease patients only take medicine when they are suffocating or wheezing, and immediately stop the medicine as soon as the condition is relieved. This practice is very dangerous. This kind of intermittent medication cannot maintain the proper concentration of the medication, and the risk of decreased lung function and the risk of acute exacerbation is greatly increased.

 

For people at high risk of COPD who have symptoms such as cough, sputum expectoration, or difficulty breathing, and have been exposed to indoor/outdoor pollution for a long time, it is necessary to perform a lung function test on them to determine whether they are COPD.

 

Home oxygen therapy:

Oxygen therapy method: Generally, a nasal catheter is used with a flow rate of 1 to 2 liters/min. The oxygen concentration is around 30%.

Oxygen therapy goal: oxygen saturation above 90%, oxygen partial pressure above 60mmHg.

 

The relationship between outlet oxygen concentration and flow rate is as below: (take 5L as an example)

Flow rate (L/min)

0

1

2

3

4

5

Outlet oxygen concentration

(V/v)

21%

93%

94%

94.2%

94.16%

93.8%

 

The relationship between inhaled oxygen concentration and flow is as follows: (take 5L as an example)

 

Flow rate (L/min)

0

1

2

3

4

5

Inhaled oxygen concentration

(V/v)

21%

25%

29%

33%

37%

41%

 

Medical molecular sieve oxygen concentrators belong to category 2 medical equipment. The national standard is commonly known as medical 93 oxygen. The oxygen concentration (oxygen concentration at the outlet of the oxygen concentrator) is 93% ± 3%, and the outlet pressure is 0.04-0.07Mpa. Suitable for long-term home oxygen therapy for patients.

 

The central oxygen supply/oxygen cylinder of the hospital is pure oxygen, the outlet oxygen concentration is 99.99%, and the outlet pressure is above 0.1Mpa, which is not suitable for long-term family oxygen therapy.

 

Patients with COPD should strengthen their own functional exercises. Although these patients often have a certain degree of breathing difficulties, they cannot stop exercising. Appropriate rehabilitation training is very helpful to the stability of the disease. This emphasizes the need to breathe Find a balance between difficulty and exercise intensity. Of course, there are some more scientific evaluation methods, such as exercise cardiopulmonary function to evaluate the patient's exercise ability, and formulate corresponding exercise prescriptions accordingly. For patients taking oxygen, rehabilitation exercises should be performed under oxygen inhalation.

 

Chronic obstructive pulmonary disease is a common and frequently-occurring disease in the respiratory system of the elderly, especially in winter when the climate changes drastically and the temperature drops sharply. Therefore, once diagnosed with chronic obstructive pulmonary disease, you must seek medical treatment in time and take professional and standardized treatment. Patients with chronic obstructive pulmonary disease insist on daily home oxygen therapy for at least 7-8 hours a day, with a 5-liter oxygen concentrator as the mainstay, and must be equipped with oxygen concentration detection and temperature detection.

 

Home oxygen therapy:

How many liters of oxygen concentrators do patients with COPD need?

Home oxygen therapy requires 3-10 liters of oxygen concentrators (depending on the condition). According to the relationship between the inhaled oxygen concentration and the flow rate, only 41% of the oxygen in the patient's body can be inhaled by the 5-liter oxygen concentrator. This is the value under ideal conditions. In fact, the oxygen inhaled by the 5-liter machine in patients with COPD is more than 30%. , That is, the doctor said that oxygen with a low oxygen concentration of about 30 should be used for discharge. This refers to a 5-liter oxygen concentrator. Whether the patient uses a 3 liter, 5 liter or 10 liter machine, it depends on the patient’s blood oxygen saturation at 90% The above (usually 94% is sufficient) is the goal. For example, for patients with chronic obstructive pulmonary disease who use a 5-liter machine but the blood oxygen saturation is below 90, then a large-flow oxygen concentrator above 5 liters should be used. Oxygen therapy time: ranging from 7-8 hours a day to more than ten hours, very severely more than 20 hours.

 

Longfian oxygen concentrator wishes you good health!