Understanding “Red Flags”

When Imaging Is Urgently Needed

In medical imaging, “red flags” are symptoms that may indicate a serious underlying condition and require urgent investigation.

Recognising these red flags helps doctors decide when imaging should not be delayed.

Common Red Flags

Red flags may include:

• Sudden or severe pain

• Progressive weakness or numbness

• Fever with concerning symptoms

• Unexplained weight loss

• Abnormal neurological findings

  
  

These symptoms don’t always mean something serious—but they must be investigated promptly.

Why Red Flags Matter

When red flags are present:

• Imaging helps exclude serious conditions

• Early diagnosis improves outcomes

• Delayed imaging can increase risk

  
  

Key Takeaways for Patients

• Red flags guide urgent imaging decisions

• Early scanning can be lifesaving

• Imaging protects patient safety