All are true about bilateral diaphragmatic paralysis,Except-
**Core Concept**
Bilateral diaphragmatic paralysis is a condition where both diaphragms are unable to contract, leading to poor lung expansion and ventilation. This can result from various causes, including neurological disorders, trauma, or surgical complications. The diaphragm plays a crucial role in respiration, and its paralysis can significantly impact respiratory function.
**Why the Correct Answer is Right**
Bilateral diaphragmatic paralysis leads to a significant increase in respiratory effort, as the person tries to compensate for the lack of diaphragmatic contraction. This can result in the development of orthopnea, a condition where the person experiences shortness of breath while lying down and feels better when sitting or standing. The paralysis can also lead to the development of abdominal paradox, where the abdomen moves inward during inspiration. In addition, bilateral diaphragmatic paralysis can lead to a decrease in lung volumes, including vital capacity and tidal volume.
**Why Each Wrong Option is Incorrect**
**Option A:** While bilateral diaphragmatic paralysis can lead to respiratory failure, it is not the only cause of respiratory failure. Other causes, such as pneumonia or chronic obstructive pulmonary disease (COPD), can also lead to respiratory failure.
**Option B:** Bilateral diaphragmatic paralysis can lead to an increase in respiratory effort, but it does not directly cause a decrease in respiratory rate. In fact, people with bilateral diaphragmatic paralysis may have an increased respiratory rate as a compensatory mechanism.
**Option C:** While bilateral diaphragmatic paralysis can lead to a decrease in lung volumes, it does not directly cause an increase in pleural pressure. In fact, the pleural pressure may be decreased in people with bilateral diaphragmatic paralysis due to the decreased lung volumes.
**Clinical Pearl / High-Yield Fact**
One important clinical correlation to remember is that bilateral diaphragmatic paralysis can be a complication of certain surgical procedures, such as thoracic surgery or abdominal surgery. Therefore, it is essential to monitor patients for respiratory complications after these types of surgeries.
**Correct Answer:** A.