**Core Concept**
The management of a blocked tracheostomy tube requires prompt action to restore a patent airway. This involves recognizing the signs of obstruction, understanding the anatomy of the tracheostomy site, and knowing the proper techniques for clearing the blockage.

**Why the Correct Answer is Right**
The Portex tracheostomy tube is a type of cuffed tube, which allows for secure fixation of the tube within the trachea. However, if the tube becomes blocked, the cuff may be inflated to prevent air from escaping, but this will not address the underlying issue. The correct answer involves using a technique to clear the blockage, which is the "suction catheter" method. This involves using a suction catheter to clear the blockage by suctioning out any secretions or debris that may be obstructing the tube. This method is preferred because it is less invasive and does not require removing the tracheostomy tube.

**Why Each Wrong Option is Incorrect**
**Option A:** Attempting to remove the tracheostomy tube is not the best next step in management, as this can lead to further complications, including bleeding, damage to surrounding tissues, and potential aspiration of secretions.

**Option B:** Inflating the cuff of the tracheostomy tube is not effective in clearing a blockage, as it may only worsen the situation by pushing the blockage further into the trachea.

**Option C:** Using a bronchoscope to clear the blockage is not the best next step in management, as this requires specialized equipment and expertise, and may not be immediately available in a ward setting.

**Clinical Pearl / High-Yield Fact**
In cases of tracheostomy tube blockage, it is essential to remember that the primary goal is to restore a patent airway as quickly and safely as possible. This involves using techniques that are least invasive and most effective in clearing the blockage.

**Correct Answer: C. Using a suction catheter to clear the blockage**