• Published on: Apr 30, 2022
  • 2 minute read
  • By: Second Medic Expert

What Is PET Scan ?

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A PET scan (positron emission tomography) is a type of imaging test that uses a radioactive tracer to look for changes in the function of cells and tissues. A tracer is a substance that is introduced into the body to make it easier to see certain areas or organs. The radioactive tracer used in PET scans emits positrons, which are tiny particles that collide with electrons in the body. This creates gamma rays that can be detected by a scanner and used to create images of the inside of the body. PET scans are often used to diagnose cancer because tumor cells typically have higher levels of activity than normal cells. They can also be used to check for treatment response, measure tumor size, and identify new tumors.

PET Scan is a nuclear medicine imaging test that uses a small amount of radioactive material, called a tracer, to look for disease in the body. A PET Scan can show how well organs and tissues are working. It can help find cancer, heart problems, and other diseases. A Positron Emission Tomography (PET) scan is a medical imaging test that helps physicians diagnose and treat diseases. PET scans use a small amount of radioactive material, called a tracer, to help physicians see how organs and tissues are functioning. The radioactive tracer is injected into the patient's body and travels to the organ or tissue being studied. Physicians can then see where the tracer collects on an image of the organ or tissue.

A PET scan is helpful in diagnosing cancer, heart disease, brain disorders, and other diseases. It can also help determine how well treatment is working. PET Scan is an acronym for Positron Emission Tomography. It's a type of medical imaging that uses a small amount of radioactive material to help diagnose and treat medical conditions. A PET scanner creates 3D images of the inside of the body. PET (positron emission tomography) scans use a small amount of radioactive material called a tracer to help doctors see certain areas of the body. The tracer is injected into a vein, and images are taken as it moves through the body.

PET scans are often used to find cancer because tumors absorb more of the radioactive material than normal tissue does. PET scans can also be used to measure blood flow, check how well drugs work, and see how active the brain is. A PET scan is a type of imaging test that uses radioactive tracers to look at the function and structure of organs and tissues in your body. A small amount of radioactive material is injected into your bloodstream and then scanned by a special camera. The camera creates pictures that show where the material has collected. This can help doctors see how well an organ is working or find tumors or other problems.

PET scan is short for positron emission tomography. It's a type of medical imaging that uses a radioactive tracer to look at organ function or tissue metabolism. The tracer is a small amount of radioactive material that's injected into the patient's bloodstream. It collects in organs and tissues, and a scanner detects the radiation emitted as it decays. This information is used to create cross-sectional images of the body that show how the organs and tissues are working. PET scans are most often used to detect cancer because tumors consume more energy than normal tissue and therefore have a higher metabolic rate. But they can also be used to evaluate other problems, such as heart disease, brain function, and joint damage.

PET scanning is a type of nuclear medicine imaging. A small amount of radioactive glucose (FDG) is injected into a vein and images are taken as the glucose moves through the body. Cancer cells use more energy than normal cells and therefore absorb more of the radioactive glucose. This allows tumors to be visualized on the scan. PET stands for Positron Emission Tomography. A PET scan is a medical imaging test that uses a radioactive tracer to look at organs and tissues inside the body. The tracer is injected into a vein, and images are taken as it moves through the body.

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Chest pain

Chest Pain While Breathing: Causes, Warning Signs, and When to Seek Urgent Care

Chest pain is one of the most alarming symptoms a person can experience, especially when it worsens during breathing. Chest pain while breathing, also known as pleuritic chest pain, often indicates involvement of the lungs, chest wall or surrounding structures. While some causes are mild, others can be life-threatening and require immediate medical attention.

In India, respiratory infections, air pollution, sedentary lifestyles and delayed medical care contribute significantly to chest-related symptoms.

 

What Does Chest Pain While Breathing Mean?

Chest pain while breathing refers to pain that:

  • worsens with deep inhalation or exhalation

  • may feel sharp, stabbing or burning

  • can be localized or spread across the chest

Pain intensity often increases with coughing or movement.

 

Common Causes of Chest Pain While Breathing

Lung Infections (Pneumonia)

Pneumonia inflames lung tissue and surrounding membranes.

Symptoms include:

  • chest pain while breathing

  • fever

  • cough

  • breathlessness

ICMR data identifies pneumonia as a major cause of respiratory illness in India.

 

Pleuritis (Inflammation of Lung Lining)

The pleura are thin membranes surrounding the lungs.

When inflamed:

  • breathing causes friction

  • sharp chest pain occurs

Pleuritis often follows viral infections or pneumonia.

 

Pulmonary Embolism

A blood clot in the lungs causes:

  • sudden chest pain

  • rapid breathing

  • severe breathlessness

This is a medical emergency requiring immediate care.

 

Chest Wall Muscle Strain

Muscle strain due to:

  • heavy lifting

  • intense coughing

  • poor posture

can cause pain during breathing or movement.

 

Costochondritis

Inflammation of rib cartilage causes:

  • localized chest pain

  • pain worsened by breathing or pressing on the chest

This condition is painful but not life-threatening.

 

Pneumothorax (Collapsed Lung)

Air leakage into the chest cavity causes:

  • sudden sharp chest pain

  • breathlessness

Often seen after trauma or in individuals with lung disease.

 

Heart-Related Causes

Though heart pain usually does not worsen with breathing, conditions such as:

  • pericarditis (heart lining inflammation)

can cause chest pain that changes with respiration.

 

Acid Reflux and Esophageal Spasm

Gastrointestinal causes may mimic chest pain.

However:

  • pain usually relates to meals

  • breathing-related pain should be evaluated carefully

 

Anxiety and Panic Disorders

Anxiety can cause:

  • chest tightness

  • rapid breathing

  • discomfort while breathing

Medical causes must be ruled out before attributing pain to anxiety.

 

Warning Signs That Require Emergency Attention

Seek immediate medical care if chest pain while breathing is associated with:

  • sudden onset

  • severe breathlessness

  • bluish lips or fingers

  • dizziness or fainting

  • sweating

  • coughing up blood

These may indicate life-threatening conditions.

 

Risk Factors for Serious Chest Pain

Higher risk occurs in people with:

  • smoking history

  • recent surgery or long travel

  • lung disease

  • heart disease

  • clotting disorders

Early evaluation is critical.

 

Diagnostic Evaluation

Doctors may recommend:

  • physical examination

  • chest X-ray

  • ECG

  • blood tests

  • CT scan

Timely diagnosis saves lives.

 

Why Chest Pain Should Not Be Ignored

Ignoring chest pain can lead to:

  • delayed treatment

  • worsening respiratory failure

  • preventable complications

WHO emphasises early symptom recognition for better outcomes.

 

Impact of Air Pollution and Lifestyle

Air pollution increases:

  • lung inflammation

  • infection risk

Sedentary habits reduce lung capacity, worsening symptoms.

 

Preventive Measures

Helpful preventive steps include:

  • avoiding smoking

  • staying physically active

  • managing respiratory infections early

  • maintaining good posture

  • staying hydrated

Preventive care reduces risk.

 

Role of Preventive Health Checkups

Regular health screening helps detect:

  • early lung disease

  • heart risk factors

  • chronic inflammation

Early intervention prevents emergencies.

 

When Chest Pain Is Less Likely Serious

Pain may be less concerning if:

  • localized

  • reproducible on touch

  • improves with rest

However, medical confirmation is still necessary.

 

Importance of Timely Medical Consultation

Chest pain should always be evaluated by a healthcare professional.

Delaying care can:

  • increase complications

  • raise mortality risk

Early action saves lives.

 

Conclusion

Chest pain while breathing is a critical symptom that should never be ignored. While causes range from muscle strain and infections to serious lung and heart conditions, only proper medical evaluation can determine the exact cause. Early diagnosis, timely treatment and preventive care are essential to protect respiratory and cardiovascular health. When it comes to chest pain, it is always safer to act early than to wait.

 

References

  • Indian Council of Medical Research (ICMR) – Respiratory and Cardiovascular Health Reports

  • World Health Organization (WHO) – Chest Pain and Respiratory Symptoms Guidelines

  • National Family Health Survey (NFHS-5) – Adult Respiratory Health Data

  • Lancet – Pulmonary Embolism and Chest Pain Research

  • NITI Aayog – Preventive Healthcare and Early Symptom Recognition

See all

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