An elderly male patient with a history of COPD, hypertension, and diabetes presents as lethargic and confused. His airway is patent, and breathing is adequate. His skin is hot and his radial pulse is strong, regular, and bounding. Vital signs are pulse, 112; respirations, 20 breaths/min; blood pressure, 108/64 mmHg; SpO2, 94%; and temperature, 102.8°F. Also noted is swelling to his right lower leg. Given these assessment findings, the EMT should suspect which condition is responsible for the patient's altered presentation?
A) Infection
B) Peripheral edema
C) Hypoxia
D) Tachycardia
A) Infection
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