A nurse manager is providing an in-service to a group of newly licensed nurses about the use of personal protective equipment. Which of the following statements by a newly licensed nurse indicates an understanding of the teaching?

B. Changes in the fluid level of the water-seal chamber correspond to the client's breathing pattern. During inhalation, the negative pressure in the chest cavity may cause the fluid level to rise slightly as air is drawn into the tube, and during exhalation, the fluid level may fall as air exits through the chest tube.

A Fluctuations in the fluid level can occur due to changes in suction pressure settings, but this is more relevant to the suction control chamber rather than the water-seal chamber.

C. If there is continuous bubbling in the water-seal chamber, it indicates an air leak, which disrupts the normal function of the water-seal mechanism.

D. The water-seal chamber's fluctuation does not directly indicate lung re-expansion. Lung re-expansion is assessed through clinical examination, chest X-ray, or other diagnostic tests rather than the water-seal chamber.

A Breathing exercises can help improve lung function and oxygenation. However, the specific type of breathing exercise is crucial. Emphysema typically involves air trapping due to loss of elasticity in the lungs, so teaching a breathing exercise with a longer exhalation phase (to facilitate complete exhalation and prevent air trapping) would be more beneficial than emphasizing a longer inhalation phase.

B. Fluid restriction is not typically indicated for clients with emphysema. It is more relevant for conditions where fluid overload can exacerbate symptoms (like congestive heart failure). In emphysema, maintaining adequate hydration is important to keep secretions thin and more manageable for clearing.

C.Incentive spirometry is used to help promote deep breathing and prevent atelectasis (lung collapse) by encouraging the client to take slow, deep breaths. However, incentive spirometry is typically more useful for clients recovering from surgery or immobilized clients rather than for those with emphysema.

D. The use of oxygen therapy at 2 L/min is a standard intervention for clients with emphysema who have low oxygen levels, as it helps maintain proper oxygenation. It is crucial to manage oxygen levels carefully to prevent complications such as hypoxia or pulmonary hypertension while avoiding excessive oxygen, which may reduce the patient's drive to breathe.