All of the following are true regarding tracheostomy tube except: September 2008
**Core Concept**
A tracheostomy tube is a medical device inserted into the trachea (windpipe) to facilitate breathing in patients with respiratory distress or obstruction. The tube is connected to a ventilator or oxygen source, allowing for controlled ventilation and oxygenation.
**Why the Correct Answer is Right**
The correct answer is related to the anatomy and physiology of the trachea. A tracheostomy tube is typically inserted below the cricoid cartilage, which is the narrowest part of the trachea. This positioning allows for minimal resistance to airflow and facilitates effective ventilation. The tube is secured in place with a tie or strap around the neck.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it is not a true statement about tracheostomy tubes. The cuff of a tracheostomy tube is usually located above the vocal cords, not below.
**Option B:** This option is incorrect because it is not a characteristic of tracheostomy tubes. Tracheostomy tubes are typically made of plastic, silicone, or metal, but they are not typically made of rubber.
**Option C:** This option is incorrect because it is not a common complication of tracheostomy tubes. The main complications of tracheostomy tubes are related to the insertion procedure, such as bleeding or airway injury.
**Clinical Pearl / High-Yield Fact**
When inserting a tracheostomy tube, it is essential to identify the cricoid cartilage and insert the tube below it to avoid causing subglottic stenosis, a potentially life-threatening complication.
**Correct Answer: C.**