During laryngoscopy and endo-tracheal intubation which of the maneuver is not performed –
**Core Concept**
During laryngoscopy and endotracheal intubation, several maneuvers are performed to facilitate visualization of the vocal cords and successful intubation. These maneuvers aim to align the oral, pharyngeal, and laryngeal axes, minimize the risk of aspiration, and optimize the view of the glottis.
**Why the Correct Answer is Right**
The correct answer is **D. Cricoid pressure**. Cricoid pressure, also known as the Sellick maneuver, is applied to the cricoid cartilage to occlude the esophagus and prevent gastric aspiration. However, it is **not** performed during laryngoscopy and endotracheal intubation because it can:
* Limit the movement of the larynx and make intubation more difficult
* Compromise the view of the glottis
* Increase the risk of esophageal rupture
**Why Each Wrong Option is Incorrect**
* **Option A:** The sniffing position is indeed performed to align the oral, pharyngeal, and laryngeal axes and optimize the view of the glottis. It involves tilting the patient's head back and lifting the chin.
* **Option B:** The jaw thrust maneuver is used to displace the mandible and improve the view of the glottis, especially in patients with a difficult airway. It is a crucial technique in airway management.
* **Option C:** The bougie technique is an alternative method of intubation, where a flexible tube (bougie) is used to guide the endotracheal tube into the trachea. It is particularly useful in cases of difficult intubation.
**Clinical Pearl / High-Yield Fact**
The "sniffing position" is a crucial maneuver in airway management, but it's essential to remember that the patient's head should be positioned in a way that aligns the oral, pharyngeal, and laryngeal axes, while also ensuring that the chin is lifted to prevent the tongue from falling back and obstructing the view of the glottis.
**Correct Answer: D. Cricoid pressure is not performed during laryngoscopy and endotracheal intubation.**