A nurse is providing teaching to a client and his partner about performing peritoneal dialysis at home. When discussing peritonitis, which of the following manifestations should the nurse identify as the earliest indication of this complication?

Fluid volume deficit

The client is receiving Furosemide (a diuretic) at a significant dose (80 mg IV three times per day). This medication promotes diuresis to reduce fluid overload in heart failure. The client's weight decreased from 97.5 kg on admission to 90.7 kg on Day 2, indicating a fluid loss of approximately 6.8 kg (about 15 pounds). This substantial weight loss suggests a risk for fluid volume deficit, which can lead to hypovolemia and potential complications such as hypotension and decreased tissue perfusion.

Acute kidney injury (AKI)

The client's BUN level increased from 10 mg/dL on admission to 20 mg/dL on Day 2, which suggests impaired kidney function. This change may indicate a decrease in glomerular filtration rate due to decreased renal perfusion secondary to fluid loss from diuresis. AKI is a known complication in heart failure patients receiving diuretic therapy, especially if there is inadequate monitoring and adjustment of diuretic doses.

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.