CEN Respiratory Emergencies 3

Question 1

A patient presents with sudden-onset dyspnea and unilateral leg swelling. Wells score is 6. What is the next step?

Accepted Answer

CT pulmonary angiography

Answer

D-dimer level

Answer

V/Q scan

Answer

Lower extremity Doppler ultrasound

Question 2

Which finding best differentiates cardiogenic pulmonary edema from ARDS on chest X-ray?

Accepted Answer

Cardiomegaly and Kerley B lines in cardiogenic edema

Answer

Bilateral infiltrates in cardiogenic edema vs. unilateral in ARDS

Answer

Air bronchograms in cardiogenic edema but not ARDS

Answer

Pleural effusions only in ARDS

Question 3

A patient has a suspected foreign body airway obstruction and becomes unconscious. What is the immediate next step?

Accepted Answer

Begin CPR and look for the object during ventilation attempts

Answer

Continue abdominal thrusts

Answer

Perform emergency tracheotomy

Answer

Administer high-flow oxygen via mask

Question 4

Confirmation of endotracheal tube placement should be verified by which MOST reliable method?

Accepted Answer

Continuous waveform capnography

Answer

Auscultation of bilateral breath sounds

Answer

Chest rise observation

Answer

Chest X-ray only

Question 5

A patient with severe asthma exacerbation has a PEFR of 25% predicted. Which disposition is most appropriate?

Accepted Answer

Admit to ICU and consider intubation

Answer

Discharge with inhaler prescription

Answer

Observe for 1 hour and reassess

Answer

Discharge after 4 hours of treatment

Question 6

When performing rapid sequence intubation (RSI), what is the purpose of applying cricoid pressure (Sellick maneuver)?

Accepted Answer

Prevent regurgitation and aspiration of gastric contents

Answer

Improve visualization of the vocal cords

Answer

Facilitate passage of the endotracheal tube

Answer

Reduce the dose of sedative required