In the ever-evolving landscape of the COVID-19 pandemic, accurate and timely diagnosis has been paramount. While RT-PCR tests are the standard for detecting the virus's genetic material, CT (Computed Tomography) scans have emerged as a critical, complementary diagnostic tool, especially in moderate to severe cases.
A CT scan became an important tool during the COVID-19 pandemic.
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It helps doctors evaluate lung infection and measure disease severity.
In this guide, you will learn why CT scans are used for COVID, how the procedure works, and what it costs.
A CT (Computed Tomography) scan is an imaging test that creates detailed pictures of the lungs.
In COVID patients, it helps detect lung inflammation and infection.
The scan provides clearer images than a normal chest X-ray.
Doctors use it to assess how much the lungs are affected.
A CT scan is not usually the first test for COVID.
RT-PCR remains the primary diagnostic test.
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However, CT scans are helpful in certain situations.
CT scans can show early lung changes caused by the virus.
It helps identify pneumonia and inflammation.
Doctors calculate a CT severity score.
This score shows how much of the lung is involved.
Based on the severity score, doctors decide:
Hospital admission
Oxygen requirement
ICU care
Medication plan
A CT scan may be advised when:
Oxygen levels drop below normal
Symptoms suddenly worsen
High fever continues for many days
Breathing difficulty increases
RT-PCR result is negative but symptoms are severe
It is usually recommended in moderate to severe cases.
The procedure is simple and quick.
You lie down on a scanning table.
The table moves inside a circular CT machine.
The scan takes only a few minutes.
In most COVID cases, a non-contrast CT scan is performed.
You can go home the same day unless hospitalization is needed.
The CT severity score measures how much the lungs are affected.
The total score usually ranges from 0 to 25.
Minimal lung involvement
Symptoms are usually mild
Significant lung infection
May require oxygen support
Extensive lung damage
ICU care may be required
Doctors use this score to monitor recovery.
The cost of a CT scan for COVID in Mumbai typically ranges between:
?2,500 to ?6,000
The price depends on:
Diagnostic centre location
Machine technology
Emergency services
Doctor consultation charges
Always choose a reliable and accredited diagnostic centre.
CT scans use radiation.
However, the radiation dose is controlled and generally safe.
Doctors recommend it only when medically necessary.
Repeated scans should be avoided unless required.
Pregnant women should inform their doctor before the scan.
RT-PCR detects the virus.
CT scan detects lung damage caused by the virus.
Both tests serve different purposes.
CT scan is supportive, not a replacement for RT-PCR.
A CT scan plays an important role in evaluating COVID severity.
It helps doctors assess lung damage and plan treatment effectively.
However, it should only be done when recommended by a doctor.
If you experience worsening symptoms, consult a healthcare professional immediately.
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