A nurse enters a client's room to administer medication and finds the client lying in bed disoriented with labored and fast respirations. Which of the following actions should the nurse take first?

A. Inspiratory stridor

Inspiratory stridor is a high-pitched, musical sound heard during inspiration and is typically caused by turbulent airflow due to partial obstruction of the upper airway. It is commonly associated with conditions such as croup, epiglottitis, or anaphylaxis. While respiratory distress may occur in a pneumothorax, inspiratory stridor specifically suggests an upper airway obstruction rather than a pneumothorax.

B. Expiratory wheeze

Expiratory wheeze is a high-pitched, musical sound heard during expiration and is typically associated with conditions such as asthma, chronic obstructive pulmonary disease (COPD), or bronchiolitis. Wheezing occurs due to narrowing of the airways, leading to turbulent airflow during expiration. While a pneumothorax can cause respiratory distress, it is not typically associated with wheezing.

C. Absence of breath sounds

The absence of breath sounds over a particular area of the chest can indicate a pneumothorax. In a pneumothorax, air accumulates in the pleural space, causing partial or complete collapse of the lung and preventing it from making contact with the chest wall. This absence of breath sounds over the affected area is a classic finding in a pneumothorax and is crucial for its detection.

D. Coarse crackles

Coarse crackles are discontinuous, bubbling or popping sounds heard during inspiration and may be indicative of conditions such as pneumonia, pulmonary edema, or bronchiectasis. These crackles are typically heard when there is fluid or mucus in the airways. While a pneumothorax can cause respiratory distress, it does not typically produce crackles on auscultation.

A. Administer IV morphine.

IV morphine may be indicated to relieve pain and anxiety associated with a pulmonary embolism. However, it is not the priority intervention compared to addressing the client's respiratory distress and hypoxemia with oxygen therapy.

B. Begin oxygen therapy.

The priority intervention for a client who develops a pulmonary embolism is to begin oxygen therapy. Pulmonary embolism (PE) is a life-threatening condition characterized by a blockage in one or more of the pulmonary arteries, usually due to a blood clot. This blockage can lead to impaired gas exchange and decreased oxygenation of the blood, resulting in hypoxemia (low blood oxygen levels) and potentially leading to respiratory failure. Administering oxygen therapy promptly helps to improve oxygenation and support vital organ function. Therefore, it is the priority intervention to address the immediate respiratory distress associated with a pulmonary embolism.

C. Start an IV infusion of lactated Ringer's.

Intravenous fluid administration may be necessary to maintain hemodynamic stability and support perfusion in a client with a pulmonary embolism. However, it is not the priority intervention compared to addressing the client's respiratory distress and hypoxemia with oxygen therapy.

D. Initiate cardiac monitoring.

Cardiac monitoring is important to assess for signs of cardiac compromise or dysrhythmias associated with a pulmonary embolism. However, it is not the priority intervention compared to addressing the client's respiratory distress and hypoxemia with oxygen therapy.