Which of the following is true regarding the physiology of an open pneumothorax?

Air cannot pass freely into the thoracic cavity through a chest wound.

The air is trapped when it enters the cavity.

Air moves in and out of a wound in the chest wall.

There are no audible sounds in an open pneumothorax.

Answer and Explanation

The Correct Answer is C

Choice A Reason:

Air cannot pass freely into the thoracic cavity through a chest wound is incorrect because air can indeed pass freely into the thoracic cavity through the chest wound in an open pneumothorax.

Choice B Reason:

The air is trapped when it enters the cavity is incorrect because the characteristic feature of an open pneumothorax is that air is not trapped; rather, it enters the thoracic cavity with each inhalation and exits with each exhalation through the chest wound.

Choice C Reason:

Air moves in and out of a wound in the chest wall is correct. In an open pneumothorax, also known as a "sucking chest wound," air can freely move in and out of the thoracic cavity through a wound in the chest wall. This occurs due to the creation of a communication pathway between the external environment and the pleural space, typically caused by a penetrating injury to the chest.

Choice D Reason:

There are no audible sounds in an open pneumothorax is incorrect because in an open pneumothorax, there may be audible sounds associated with the movement of air in and out of the wound, such as a sucking or bubbling sound, depending on the size and location of the wound. These sounds can be clinically significant and aid in the diagnosis of an open pneumothorax.

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Free Nursing Study Resources

Correct Answer is ["B","C","E"]

Explanation

Choice A Reason:

Photosensitivity is incorrect. Photosensitivity, or sensitivity to light, is not a common symptom of multiple sclerosis. While individuals with MS may experience visual disturbances, such as blurred vision or optic neuritis, sensitivity to light is not typically reported as a primary symptom.

Choice B Reason:

Memory issues is correct. Memory issues, including problems with short-term memory, concentration, and cognitive processing speed, are common neurological symptoms in individuals with multiple sclerosis. Cognitive impairment can affect various aspects of memory and cognitive function.

Choice C Reason:

Lhermitte's sign is correct. Lhermitte's sign is a classic neurological sign characterized by an electric shock-like sensation that radiates down the spine or into the limbs upon flexing the neck. It is a common symptom in multiple sclerosis, often associated with cervical spinal cord lesions.

Choice D Reason:

Seizures is incorrect. Seizures are not a typical symptom of multiple sclerosis. While individuals with MS may experience various neurological symptoms, seizures are not a common manifestation of the disease.

Choice E Reason:

Central vision loss is correct. Visual disturbances, including central vision loss, blurred vision, double vision, or optic neuritis, are common symptoms of multiple sclerosis. Optic neuritis, inflammation of the optic nerve, is a frequent manifestation of MS that can lead to temporary or permanent central vision loss.

A. Chronic cough B. Sputum production C. Dyspnea D. Wheezing

Correct Answer is ["A","B","C","D"]

Explanation

Choice A Reason:

Chronic cough is correct. Persistent cough is a common symptom of COPD, often occurring due to irritation and inflammation in the airways.

Choice B Reason:

Sputum production is correct. COPD patients frequently experience increased mucus production, leading to coughing up phlegm or sputum, especially in the morning.

Choice C Reason:

Dyspnea is correct. Shortness of breath or dyspnea is a hallmark symptom of COPD, particularly during physical activity or exertion, and it tends to worsen as the disease progresses.

Choice D Reason:

Wheezing occurs due to narrowed airways and increased airway resistance. It is more noticeable during expiration but can also be present during inspiration in severe cases.

Choice E Reason:

Chest tightness is incorrect. While chest tightness can occur in COPD, it is typically more associated with asthma. However, some individuals with COPD may experience chest tightness, especially during exacerbations or when airflow is significantly limited.

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Which of the following is true regarding the physiology of an open pneumothorax?

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Naxlex Comprehensive Predictor Exams

A nurse is caring for a client who has multiple sclerosis. Which of the following assessment findings should the nurse anticipate with this client? (Select All that Apply.)

Correct Answer is ["B","C","E"]

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Correct Answer is ["A","B","C","D"]

Explanation

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