Final answer:
A patient suffering from anaphylaxis would most likely complain of throat constriction. Anaphylaxis is a severe and rapid allergic reaction that can cause airway constriction and is life-threatening without prompt treatment.
Step-by-step explanation:
The most likely complaint of a patient suffering from anaphylaxis would be: My throat feels like it is closing. This symptom is indicative of a severe allergic reaction known as anaphylaxis, which is characterized by systemic issues including the constriction and tightening of the airway, a swollen throat or the sensation of a lump in your throat that makes it difficult to breathe, and potentially life-threatening symptoms if not treated promptly. Patients experiencing such reactions are often advised to carry an epinephrine autoinjector to help control the immune reaction until medical care can be obtained.