EMT Airway and Breathing Practice Test 1

Question 1

What is the maximum flow rate for a Nasal Cannula?

Accepted Answer

6 lpm

Answer

A nasal cannula is a low-flow oxygen delivery device used for patients requiring supplemental oxygen at lower concentrations. While it can deliver oxygen at rates from 1 to 6 liters per minute (lpm), exceeding 6 lpm with a nasal cannula is generally not recommended. Higher flow rates can become uncomfortable for the patient, cause nasal dryness, and do not significantly increase the delivered oxygen concentration due to the limitations of the device.

Question 2

What is the following device ?  A device designed to facilitate the blind intubation of a patient. It consists of a cuffed double-lumen tube with one blind end. Inflation of the cuff allows the device to function as an endotracheal tube and closes off the esophagus, allowing ventilation and preventing reflux of gastric contents.

Accepted Answer

Dual Lumen Airway

Answer

The description accurately defines a Dual Lumen Airway, such as a Combitube or King LT airway. These devices are designed for emergency airway management, particularly for blind intubation, by creating a seal in the esophagus or pharynx. This allows for effective ventilation and helps prevent aspiration of gastric contents, making them valuable tools when direct visualization of the larynx is difficult.

Question 3

In order to provide Oxygen Therapy at "100%" what should the flow rate be?

Accepted Answer

12-15 LPM

Answer

To provide the highest possible concentration of oxygen to a spontaneously breathing patient, typically close to 100%, a non-rebreather mask is used. This device requires a flow rate of 12-15 liters per minute (LPM) to ensure the reservoir bag remains inflated. This high flow rate prevents rebreathing of exhaled air and delivers nearly pure oxygen from the source.

Question 4

What airway opening maneuver should be used on a man that has fallen off a ladder and is suffering from respiratory distress?

Accepted Answer

Jaw Thrust

Answer

For a patient who has fallen and may have a spinal injury, the Jaw Thrust maneuver is the preferred method for opening the airway. This technique minimizes movement of the cervical spine, reducing the risk of exacerbating a potential spinal cord injury. Unlike the Head Tilt-Chin Lift, it lifts the jaw forward without extending the neck.

Question 5

A device that delivers a specific amount of medication to the lungs, in the form of a short burst of aerosolized medicine that is inhaled by the patient is known as a(n)?

Accepted Answer

Metered Dose Inhaler

Answer

A Metered Dose Inhaler (MDI) is a common medical device used to deliver a precise, pre-measured dose of aerosolized medication directly into the lungs. Patients activate the device while inhaling, allowing the medication to reach the airways for conditions like asthma or COPD. It provides targeted drug delivery with minimal systemic side effects.

NREMT Practice Test

NREMT Practice Test

EMT Airway and Breathing Practice Test 1