Respiratory Distress Syndrome Overview
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Respiratory Distress Syndrome Overview

Learn about the causes and effects of Respiratory Distress Syndrome, including unstable sac collapse (Atelectasis), hypoxemia, and the impact of hyaline membrane on lung elasticity and compliance. Understand how VQ mismatch occurs during the exudate phase.

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@TidyElbaite

Questions and Answers

What is the primary role of surfactant cells in the lungs?

Prevent alveolar collapse

In Acute Respiratory Distress Syndrome (ARDS), what is the hallmark feature associated with the presence of a hyaline membrane?

Hypoxemia

What is the consequence of a VQ mismatch in the lungs?

Decreased ventilation relative to perfusion

During the proliferative phase of ARDS, why does the body produce dense and fibrous lung tissue?

<p>To absorb fluid in the alveoli sac</p> Signup and view all the answers

What is the hallmark sign and symptom of refractory hypoxemia?

<p>Persistent low oxygen saturation despite high levels of oxygen</p> Signup and view all the answers

Which condition leads to the formation of a hyaline membrane in the lungs?

<p>Decrease in surfactant cells</p> Signup and view all the answers

What is the primary cause of a ventilation-perfusion mismatch in Acute Respiratory Distress Syndrome?

<p>Presence of fluid in the alveoli sac</p> Signup and view all the answers

How does a decrease in surfactant cells contribute to lung damage in ARDS?

<p>Leads to stiffening and collapse of alveoli</p> Signup and view all the answers

Which phase of ARDS involves damage to the capillary membrane and the leaking of protein-rich fluids into the interstitium and sac, causing pulmonary edema?

<p>Exudative</p> Signup and view all the answers

What is the primary function of surfactant cells in the lungs during ARDS?

<p>Reduce surface tension</p> Signup and view all the answers

Which condition is characterized by a decrease in gas exchange due to the collapse of alveolar sacs and low oxygen levels in the blood?

<p>Hyaline membrane disease</p> Signup and view all the answers

In ARDS, what can lead to a ventilation-perfusion mismatch, impacting oxygenation of the blood?

<p>Altered blood flow to ventilated areas</p> Signup and view all the answers

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