Reactive Airway

Reactive Airway Disease (RAD)

Overview

Reactive Airway Disease (RAD) is not a formal medical diagnosis, but a term often used to describe people who have airway hyperreactivity—bronchial tubes that respond excessively to irritants, allergens, or infections.

It is most commonly used for individuals who wheeze or experience bronchial spasms but have not yet been formally diagnosed with asthma. RAD can occur at any age, but it is often seen in children following respiratory infections.

The condition involves inflammation and narrowing of the airways, which makes breathing more difficult and can trigger asthma-like symptoms.


Symptoms

  • Wheezing

  • Coughing, often worse at night or early morning

  • Shortness of breath or difficulty breathing

  • Excess mucus in the airways

  • Swelling of the bronchial mucous membranes

  • Hyperresponsive bronchial tubes, reacting strongly to irritants or allergens


Effects

  • Frequent respiratory discomfort that may interfere with daily activities

  • Recurrent coughing or wheezing episodes, especially with infections or irritants

  • Sleep disturbances due to nighttime symptoms

  • Increased risk of developing asthma if airway hyperreactivity persists

  • Reduced lung function over time in severe or untreated cases


Treatment

1. Avoidance and Triggers Management:

  • Avoid exposure to smoke, dust, allergens, or strong odors

  • Prevent respiratory infections through hygiene and vaccinations

2. Medications (similar to asthma management):

  • Short-acting bronchodilators (e.g., albuterol) for immediate relief of wheezing or breathing difficulty

  • Inhaled corticosteroids to reduce airway inflammation for persistent symptoms

  • Leukotriene modifiers or other anti-inflammatory medications in some cases

3. Monitoring and Follow-Up:

  • Regular check-ups to assess lung function

  • Track symptoms to determine if RAD progresses to asthma

  • Education on proper inhaler technique and symptom management


Early recognition and management of Reactive Airway Disease can reduce symptoms, prevent complications, and improve overall lung health.

 

Medicine

Respiratory Tract Infections

Respiratory Infections (VRIs/RTIs)

Overview

Viral Respiratory Infections (VRIs) include the common cold, influenza (flu), and bronchiolitis. They affect the lungs and airways (breathing passages), causing inflammation and irritation.

Respiratory tract infections can involve:

  • Sinuses (sinusitis)

  • Throat (pharyngitis or tonsillitis)

  • Airways (bronchitis)

  • Lungs (pneumonia)

Viruses responsible for VRIs include:

  • Rhinoviruses – common cold

  • Influenza viruses – flu

  • Respiratory syncytial virus (RSV) – especially in children

  • Parainfluenza viruses

  • Adenoviruses

VRIs are highly contagious and are commonly spread through airborne droplets, direct contact, or touching contaminated surfaces.


Symptoms

Symptoms vary depending on severity but often include:

  • Cough (sometimes producing mucus or phlegm)

  • Sneezing

  • Stuffy or runny nose

  • Sore throat

  • Headaches

  • Muscle aches and fatigue

  • Breathlessness or wheezing

  • Chest tightness

  • Fever or high temperature

  • General feeling of being unwell


Effects

  • Short-term discomfort and disruption in daily life

  • Exacerbation of chronic conditions like asthma or COPD

  • Risk of secondary bacterial infections (e.g., sinusitis, pneumonia)

  • In severe cases, especially in young children, elderly, or immunocompromised, VRIs can lead to hospitalization or respiratory failure


Treatment

1. Supportive Care:

  • Rest and adequate hydration

  • Use of humidifiers or warm showers to relieve congestion

  • Over-the-counter medications for fever, pain, or congestion

2. Symptom Relief:

  • Cough suppressants or expectorants

  • Nasal decongestants or saline sprays

  • Pain relievers like acetaminophen or ibuprofen

3. Antiviral Medications:

  • For influenza, antiviral drugs may reduce severity if started early

  • No antivirals are usually effective for common colds

4. Prevention:

  • Frequent handwashing

  • Avoid close contact with infected individuals

  • Vaccinations, e.g., annual flu shot

  • Covering mouth and nose when coughing or sneezing

Medicine

Restrictive lung

Restrictive Lung Disease (RLD)

Overview

Restrictive lung disease refers to a group of respiratory conditions that limit the lungs’ ability to fully expand with air, making breathing difficult.

In restrictive lung disease, the lungs cannot hold as much air as they normally would. This may be due to:

  • Stiffening of lung tissue (pulmonary fibrosis, scarring)

  • Chest wall problems (kyphosis, scoliosis)

  • Muscle or nerve disorders affecting the respiratory muscles

Some forms of restrictive lung disease are progressive and worsen over time, while others can be reversible if the underlying cause is treated.


Symptoms

Common symptoms include:

  • Shortness of breath, especially during exertion

  • Coughing, often dry

  • Wheezing

  • Chest pain or discomfort

  • Fatigue due to reduced oxygen exchange


Effects

  • Reduced exercise tolerance and daily activity limitations

  • Chronic fatigue due to inadequate oxygen supply

  • Increased risk of respiratory infections

  • Potential respiratory failure in severe or progressive cases

  • Psychological effects like anxiety or depression due to chronic breathing difficulty


Treatment

1. Treating Underlying Causes:

  • Managing pulmonary fibrosis, sarcoidosis, or connective tissue diseases

  • Correcting chest wall deformities or neuromuscular disorders when possible

2. Medications:

  • Anti-inflammatory drugs (corticosteroids) to reduce lung inflammation

  • Immunosuppressive therapy for autoimmune causes

  • Bronchodilators to ease breathing in some cases

3. Supportive Therapies:

  • Oxygen therapy for low oxygen levels

  • Pulmonary rehabilitation (breathing exercises, physical conditioning)

  • Vaccinations to prevent respiratory infections

4. Lifestyle and Self-Care:

  • Avoid smoking and exposure to lung irritants

  • Maintain a healthy weight and balanced diet

  • Practice paced breathing techniques to improve lung efficiency


With early diagnosis and proper management, symptoms can be alleviated, and progression of restrictive lung disease may be slowed, improving quality of life.

 

Medicine

Shortness of Breath

Shortness of Breath (Dyspnea)

Overview

Shortness of breath, or dyspnea, is the sensation of difficulty breathing or feeling unable to get enough air. It can result from heart or lung conditions, since both systems are essential for transporting oxygen to tissues and removing carbon dioxide.

  • Average adult at rest: ~14 breaths per minute.

  • Hyperventilation: excessively rapid breathing.

  • Causes may involve the lungs, airways, heart, or blood vessels.


Symptoms

  • Difficulty catching your breath

  • Noisy breathing

  • Rapid, shallow breaths

  • Increased pulse rate

  • Wheezing

  • Chest pain

  • Pale or bluish skin, especially around lips

  • Cold, clammy skin

  • Using shoulder and upper chest muscles to breathe

  • Anxiety or panic feelings

Associated symptoms may include:

  • Chest pain, pain with inspiration (pleurisy)

  • Fatigue, dizziness, fainting

  • Cough or bloody sputum

  • Neck pain or chest injury


Effects / Complications

  • Reduced oxygen delivery to tissues leading to fatigue, confusion, or fainting

  • Increased strain on the heart (can worsen heart failure or angina)

  • Respiratory failure in severe cases

  • Secondary anxiety or panic disorders from chronic dyspnea


Treatment

1. Addressing Underlying Cause

  • Heart-related issues: medications for heart failure, arrhythmias, or coronary artery disease

  • Lung-related issues: inhalers for asthma, oxygen therapy for COPD, antibiotics for pneumonia

  • Blood-related or systemic causes: treating anemia or infections

2. Symptom Relief

  • Oxygen therapy in cases of low oxygen saturation

  • Pulmonary rehabilitation for chronic lung disease

  • Breathing exercises and techniques like pursed-lip or diaphragmatic breathing

3. Lifestyle & Supportive Measures

  • Avoid smoking or pollutants

  • Maintain healthy weight

  • Manage anxiety with relaxation techniques or counseling

  • Stay physically active within tolerance limits

Medicine

Whooping Cough

Whooping Cough (Pertussis)

Overview

Whooping cough is a highly contagious respiratory tract infection caused by the bacterium Bordetella pertussis.

  • It is most severe in children, especially those too young to be fully vaccinated.

  • Teens and adults can also get pertussis if immunity from previous vaccination or infection has waned.

  • Before vaccines, pertussis was considered primarily a childhood disease.

  • Deaths are rare, mostly occurring in infants.

  • Vaccination is essential, particularly for pregnant women and those in close contact with infants, to prevent infection.


Symptoms

Whooping cough progresses through stages:

  1. Catarrhal Stage (1–2 weeks)

    • Runny nose

    • Nasal congestion

    • Red, watery eyes

    • Mild fever

    • Occasional cough

  2. Paroxysmal Stage (1–6 weeks)

    • Severe coughing fits (paroxysms)

    • High-pitched "whoop" sound during intake of breath

    • Vomiting after coughing

    • Red or blue face

    • Extreme fatigue

  3. Convalescent Stage (weeks to months)

    • Gradual recovery

    • Coughing fits become less frequent and less severe


Treatment / Management

  • Antibiotics: Azithromycin or clarithromycin to treat infection and reduce transmission.

  • Supportive Care:

    • Maintain hydration

    • Use a humidifier to ease coughing

    • Rest and nutrition

  • Prevention:

    • Vaccination (DTaP for children, Tdap for adolescents and adults)

    • Timely booster doses

 

Medicine

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