EMT Airways and Breathing Practice Test 2

Question 1

A blue or greyish coloration of the skin caused by lack of oxygen in the blood is called?

Accepted Answer

Cyanosis

Answer

Cyanosis is a bluish or grayish discoloration of the skin, mucous membranes, and nail beds. It is caused by a reduced amount of oxygenated hemoglobin in the blood, indicating inadequate oxygenation or poor circulation. This visible sign is a critical indicator of respiratory or circulatory compromise and requires immediate attention.

Question 2

You are performing rescue breaths using an Ambu bag attached to 100% O2. After several breaths you notice the patients O2 saturation has dropped significantly. What should you do next?

Accepted Answer

Reposition the patient's head

Answer

When performing rescue breaths with a bag-mask device, a sudden drop in oxygen saturation often indicates an ineffective seal or, more commonly, an obstructed airway. Repositioning the patient's head using a head-tilt chin-lift or jaw-thrust maneuver is the most immediate and effective step to open the airway and ensure proper ventilation, allowing air to reach the lungs.

Question 3

What is the proper amount of air that should be injected to the cuff of an Endo Tracheal Tube?

Accepted Answer

10 cc

Answer

The cuff of an endotracheal tube is inflated to create a seal in the trachea, preventing air leakage and aspiration. While the exact volume can vary slightly based on tube size and patient anatomy, approximately 10 cc of air is a common starting point to achieve an adequate seal without over-inflating, which could cause tracheal damage. The goal is to inflate just enough to prevent a leak.

Question 4

The space between the base of the tongue and the epiglottis is called?

Accepted Answer

Vallecula

Answer

The vallecula is an anatomical landmark located in the oropharynx, specifically the space or 'pocket' between the base of the tongue and the epiglottis. This space is a crucial reference point during direct laryngoscopy, as the tip of a straight laryngoscope blade is often inserted into the vallecula to indirectly lift the epiglottis and visualize the vocal cords.

Question 5

What condition is characterized by gasping, labored breathing, and strange vocalizations?

Accepted Answer

Agonal Breaths

Answer

Agonal breaths are an abnormal pattern of breathing characterized by gasping, labored, and often noisy respirations, sometimes accompanied by strange vocalizations. These breaths are a sign of severe brain anoxia and impending respiratory or cardiac arrest, and they are not effective for ventilation. They indicate a critical medical emergency requiring immediate intervention.

NREMT Practice Test

NREMT Practice Test

EMT Airways and Breathing Practice Test 2