Based on the A-a gradient calculated for the previous patient, what hypoxemic pathophysiology is most likely?

Mr. Cirius is in the ICU on an FiO2 of 100% and has a history of emphysema. An ABG is attained and reveals the following: pH 7.18, PaCO2 59 mmHg, PaO2 of 65 mmHg, HCO3 24 mEq/L. What action would you recommend?

Which of the following interstitial lung diseases (ILDs) is NOT occupationally related, presents with enlarged lymph nodes and is of unknown etiology with the highest incidence occurring in young black women?

Which term best describes diseases of the lung parenchyma that are usually occupational or environmental in origin and caused by the chronic inhalation of inorganic dusts and particulate matter?

BONUS: The most common cause of lung cancer is:

Which of the following would be the “expected” A-a gradient for a 68 year old female?

Which of the following disorders is suggested by the CXR below resulting from chronic inhalation of crystalline for greater than 20 years?

Which of the following is the primary abnormality in the patient described in the previous question?

All of the following are true about adenocarcinoma, EXCEPT:

BONUS: An asthmatic’s airway radius is narrowed by 16% during an exacerbation. Which of the following statements regarding the mechanics of ventilation is true? (Think back to A&P on ventilation).