It is important to recognize that swelling around the lips and tongue after a bee sting may represent angioedema. Angioedema demands the highest priority because it can advance quickly, compromise the airway, and lead to death. While the patient with COPD has a blood oxygenation of less than 90%, this could be the usual state for a patient with chronic COPD. The patient with a fever and chest pain likely has pneumonia and is probably the third priority of the patients listed. The patient with generalized anxiety disorder is likely experiencing a panic attack and is exhibiting good oxygenation.