What are the symptoms of formaldehyde poisoning? How to treat formaldehyde poisoning?

Today is a really eventful day. We have just seen that many students have begun to defend their rights. This afternoon we saw a group of students post a message about all students being poisoned by formaldehyde. What is going on? Let's see the symptoms of formaldehyde poisoning and how to treat it.

What are the symptoms of formaldehyde poisoning?

Symptoms of formaldehyde poisoning in different types of people

Among all people who are exposed to formaldehyde in decoration, children (infants) and pregnant women are particularly sensitive to formaldehyde due to their weak constitution, and the harm is greater. The following is a discussion of formaldehyde and some symptoms of poisoning in children (infants) and pregnant women.

Symptoms of formaldehyde poisoning in pregnant women

Formaldehyde poisoning can cause stuffiness, nausea, and even dizziness, and can be accompanied by frequent colds. These symptoms are similar to some symptoms during pregnancy, so many pregnant women do not deliberately distinguish whether the reaction is formaldehyde poisoning or pregnancy reaction. Studies have shown that long-term exposure to formaldehyde and low-concentration aromatic hydrocarbon organic solvent pollution can affect the birth weight of newborns, lead to low-birth-weight babies, significantly shorten the gestational period, and even cause birth defects and miscarriage.

Symptoms of formaldehyde poisoning in children (infants)

1. First you sneeze, then you have a runny nose, occasionally rub your eyes with your hands, feel listless, and have poor physical strength.

2. Sudden severe cough, dry cough, it takes a long time for the throat to speak, the cough sound is abnormal, and hoarseness is obvious.

3. Have mild fever symptoms.

Symptoms of formaldehyde poisoning in humans are mainly manifested in the following three types

1. Symptoms of severe poisoning: pulmonary edema in the lungs, fourth degree laryngeal edema in the throat, and severe hypoxemia in the blood.

What to do if you have formaldehyde poisoning symptoms (with formaldehyde poisoning prevention and first aid measures)

2. Symptoms of moderate poisoning: Patients experience chest tightness, frequent coughing, and expectoration. Difficulty breathing, and even dry and wet cracking sounds. When the chest is X-rayed, the lung texture solidifies and changes to leaf-shaped shadows or some scattered small black spots. Mild to moderate hypoxemia symptoms will occur during hemolysis. Throat edema will increase to level three.

3. Mild poisoning symptoms: When patients have mild poisoning, they will have conjunctival congestion, hoarse speech, difficulty breathing, and louder breathing than usual. Another specific symptom of mild formaldehyde poisoning is one to two degrees of throat edema. The eyes will obviously feel irritation. X-rays will show that the texture of the lungs begins to become more and coarser, which is a typical symptom of acute bronchitis in medical terms.

Different indoor formaldehyde concentrations result in different poisoning symptoms

The different symptoms of poisoning are mainly determined by the formaldehyde concentration in the room. Different formaldehyde concentrations in the air will cause different symptoms.

1. When the formaldehyde content in each cubic meter of air reaches 30mg/m3, it will cause direct poisoning and death.

2. When the formaldehyde content in each cubic meter of air reaches 0.6mg/m3, the human body will experience sore throat and obvious discomfort. When the concentration is higher than this value, the symptoms will be more obvious, manifested as chest tightness, nausea, coughing, and vomiting. In severe cases, asthma and pulmonary edema will occur.

3. When the formaldehyde content in each cubic meter of air reaches 0.5mg/m3, the eyes will be obviously irritated and tears will appear.

4. When the formaldehyde content in each cubic meter of air reaches 0.1mg/m3, the air will have a distinct odor and there will be obvious discomfort when entering.

5. When the formaldehyde content in each cubic meter of air reaches 0.06-0.07 mg/m3, children will suffer from mild asthma.

What are the reactions to formaldehyde poisoning?

1. Formaldehyde irritation reaction

The symptoms are transient eye and upper respiratory tract irritation, such as eye stinging, tearing, sore throat, chest tightness, cough, etc. Chest auscultation and chest X-ray showed no abnormal findings.

2. Mild poisoning

There are systemic symptoms such as blurred vision, dizziness, headache, fatigue, etc. Chest X-ray examination showed no important positive findings except for enhanced lung texture.

3. Moderate poisoning

Based on the comprehensive analysis of the following manifestations, moderate poisoning can be diagnosed:

Persistent cough, hoarseness, chest pain, dyspnea, and scattered punctate or patchy shadows on chest X-ray.

4. Severe poisoning

Those who have any of the following conditions may be diagnosed with severe poisoning: laryngeal edema and suffocation, pulmonary edema, coma, and shock.

Distinguish: Improve indoor ventilation equipment, install indoor fresh air ventilation system. Plant potted plants, aloe, spider plants, ivy and other green plants.

How to treat formaldehyde poisoning?

1. On-site treatment: Immediately leave the scene, take off the contaminated clothes in time, rinse the contaminated skin thoroughly with plenty of water, and then wash with soapy water or 2% sodium bicarbonate solution. If splashed into the eyes, rinse immediately with plenty of water.

2. If someone develops upper respiratory tract irritation after inhaling a large amount of formaldehyde gas in a short period of time, they should be observed for at least 48 hours to avoid activities that worsen the condition.

3. People who are exposed to high concentrations of formaldehyde can be given 0.1% dilute ammonia water for inhalation; early, sufficient, and short-term use of glucocorticoids can effectively prevent laryngeal edema and pulmonary edema.

4. Keep the airway open, give bronchial spasmolytics and defoaming agents, and perform tracheotomy if necessary.

6. Treat the symptoms, prevent infection, and prevent complications.