A nurse is contributing to the plan of care for a client who has partial-thickness and full-thickness burns on their lower extremities. Which of the following interventions should the nurse recommend including in the plan of care?

A. pH 7.48, PaCO₂ 32 mm Hg, HCO₃ 24 mEq/L: The elevated pH indicates alkalosis, but HCO₃ is within normal limits. This pattern suggests respiratory alkalosis with compensatory changes rather than metabolic alkalosis.

B. pH 7.36, PaCO₂ 38 mm Hg, HCO₃ 25 mEq/L: These values are within normal limits, indicating acid-base balance. They do not reflect metabolic alkalosis and would not explain clinical signs of alkalemia.

C. pH 7.46, PaCO₂ 36 mm Hg, HCO₃ 29 mEq/L: The elevated pH indicates alkalosis, and the increased HCO₃ identifies a metabolic origin. The PaCO₂ is near normal, suggesting minimal respiratory compensation, which is consistent with metabolic alkalosis.

D. pH 7.26, PaCO₂ 35 mm Hg, HCO₃ 18 mEq/L: The low pH and low HCO₃ indicate metabolic acidosis, not alkalosis. These values are inconsistent with the expected findings for metabolic alkalosis.

A. Sputum characteristic: Blood-tinged sputum is an abnormal finding that may indicate serious pulmonary pathology such as tuberculosis, pneumonia, or malignancy. This symptom requires prompt evaluation to determine the source of bleeding and identify infectious or inflammatory causes.

B. Weight: An unintentional 2.26 kg (5 lb) weight loss within one week, combined with decreased appetite, is clinically significant. Acute weight loss can indicate systemic illness, chronic infection, or malignancy and warrants further investigation in the emergency setting.

C. Oxygen saturation: An oxygen saturation of 98% on room air indicates adequate oxygenation at this time. This finding does not suggest immediate respiratory compromise and does not independently require further evaluation.

D. Travel history: Recent travel to South Africa, a region with higher prevalence of tuberculosis, is a significant risk factor. When combined with cough, night sweats, weight loss, and hemoptysis, this history raises concern for TB and necessitates further diagnostic testing and isolation precautions.

E. Heart rate: This is at the high end of normal (60 to 100 bpm). It is an expected finding in a client with a fever and slight dehydration, rather than a separate issue requiring evaluation.

F. Respiratory complaint: A productive cough lasting four days, especially with associated hemoptysis and increased respiratory rate, is concerning for an infectious or inflammatory pulmonary process. Ongoing respiratory symptoms require diagnostic imaging and laboratory evaluation.

G. Temperature: A low-grade fever of 38.1° C (100.5° F) supports the presence of an infectious process. Fever combined with night sweats and weight loss heightens concern for systemic or chronic infection and requires further assessment.

H. Blood pressure: The blood pressure reading of 112/88 mm Hg is within an acceptable range and does not indicate hemodynamic instability. This finding alone does not require additional evaluation at this time.