Heimlich manoeuvre is indicated for
**Core Concept**
The Heimlich manoeuvre is a first-aid procedure used to relieve choking caused by an obstructed airway. It involves applying a sudden, firm pressure to the abdomen or back to dislodge the object blocking the airway.
**Why the Correct Answer is Right**
The Heimlich manoeuvre is indicated in cases of acute airway obstruction due to a foreign body, such as food, coins, or other small objects, that have been inhaled or swallowed. The procedure works by increasing the intra-abdominal pressure, which helps to dislodge the object from the trachea. The abdominal thrusts also help to push the object upward, allowing it to be coughed out or removed. The Heimlich manoeuvre is a lifesaving technique that should be performed on an unconscious or conscious person who is choking.
**Why Each Wrong Option is Incorrect**
* **Option A:** The Heimlich manoeuvre is not indicated for cardiac arrest, as it does not address the underlying cause of the arrest. Cardiopulmonary resuscitation (CPR) is the appropriate response for cardiac arrest.
* **Option B:** The Heimlich manoeuvre is not indicated for vomiting or regurgitation, as these conditions do not typically involve airway obstruction. Gastric lavage or other treatments may be more appropriate for these conditions.
* **Option C:** The Heimlich manoeuvre is not indicated for anaphylaxis, as this condition involves a systemic allergic reaction rather than airway obstruction. Epinephrine (adrenaline) administration is the appropriate response for anaphylaxis.
**Clinical Pearl / High-Yield Fact**
The Heimlich manoeuvre should be performed with the person standing or sitting upright, with their feet shoulder-width apart. The rescuer should stand behind the person and wrap their arms around their waist, making a fist with one hand and placing it just above the person's navel.
**Correct Answer: D. Acute airway obstruction due to a foreign body.**