CMSRN Respiratory and Pulmonary Care 3

Question 1

A patient develops stridor after extubation. What is the priority nursing action?

Accepted Answer

Notify the physician and prepare for possible reintubation

Answer

Post-extubation stridor indicates laryngeal edema or obstruction and requires immediate physician notification and preparation for airway rescue.

Question 2

Which sign is an early indicator of hypoxemia in an adult patient?

Accepted Answer

Restlessness and anxiety

Answer

Restlessness and anxiety are early signs of hypoxemia as the brain is sensitive to decreased oxygen and responds with agitation before cyanosis appears.

Question 3

A patient is on continuous pulse oximetry and has an SpO2 reading of 99% but appears pale and is confused. What should the nurse consider?

Accepted Answer

The probe may be on a poorly perfused site, leading to inaccurate reading

Answer

Pulse oximetry can be falsely elevated in poorly perfused extremities or in the presence of carbon monoxide; the clinical picture must always be correlated.

Question 4

When teaching a patient with newly diagnosed COPD about breathing techniques, the nurse should emphasize:

Accepted Answer

Pursed-lip breathing to prevent airway collapse

Answer

Pursed-lip breathing slows exhalation, maintains positive airway pressure, and prevents premature airway collapse in COPD patients.

Question 5

A patient with acute respiratory distress syndrome (ARDS) is on a ventilator. Which ventilation strategy is recommended to prevent ventilator-induced lung injury?

Accepted Answer

Low tidal volumes of 6 mL/kg ideal body weight

Answer

Low tidal volume ventilation (6 mL/kg IBW) is the evidence-based strategy for ARDS to reduce barotrauma and ventilator-induced lung injury (VILI).

CMSRN - Medical-Surgical Nursing Practice Test

CMSRN - Medical-Surgical Nursing Practice Test

CMSRN Respiratory and Pulmonary Care 3