Which statement below is incorrect about a deep vein thrombosis (DVT)?

A. A 79-year-old lifetime smoker who is complaining of shortness of breath and pain on deep inspiration: Chronic obstructive pulmonary disease (COPD) is most commonly seen in individuals with a significant smoking history. Progressive shortness of breath is a hallmark symptom of COPD, resulting from chronic airway inflammation and airflow limitation. While pain on deep inspiration is not a classic COPD symptom, it could indicate pleuritic involvement or hyperinflation-related chest discomfort.

B. An 88-year-old female who experiences acute shortness of breath and airway constriction when exposed to tobacco smoke: Acute shortness of breath and airway constriction in response to tobacco smoke suggests an asthma-like reaction rather than COPD. COPD symptoms tend to be persistent and progressive rather than episodic.

C. An 81-year-old smoker who has increased exercise intolerance, a fever, and increased white blood cells: Fever and increased white blood cells indicate an acute infection rather than chronic lung disease. While COPD exacerbations can cause worsening symptoms, an isolated fever and elevated white blood cells suggest pneumonia or another infectious process rather than COPD alone.

D. An 81-year-old male who has a productive cough and recurrent respiratory infections: A productive cough and recurrent respiratory infections are common in chronic bronchitis, a component of COPD. However, this presentation alone is not specific to COPD, as other conditions, such as bronchiectasis, can also cause these symptoms.

A. Pulse oximetry 98%: A pulse oximetry reading of 98% indicates adequate oxygen saturation, which does not strongly suggest a pneumothorax. Patients with a pneumothorax may have lower oxygen saturation levels, but this reading alone is not indicative of the condition.

B. Diminished breath sounds over painful chest area: Diminished breath sounds are a significant clinical manifestation of pneumothorax, as air in the pleural space prevents normal lung expansion and decreases airflow to the affected side.

C. Respiratory rate 34: An elevated respiratory rate (tachypnea) is often observed in patients with pneumothorax as they may struggle to breathe effectively. This clinical manifestation indicates respiratory distress and is consistent with the condition.

D. ABG pH level of 7.38: A pH level of 7.38 indicates acidosis, which may occur in cases of pneumothorax due to impaired gas exchange and respiratory distress. This abnormal finding on arterial blood gases supports the suspicion of pneumothorax.

E. Asymmetrical chest movements, especially on inspiration: Asymmetrical chest movements are a classic sign of pneumothorax, where the affected lung does not expand as fully as the unaffected lung during inspiration, leading to visible differences in chest wall movement.