Medical Assistant Certification (MAC) AMCA Practice Exam 2026 – Comprehensive Guide to Achieve Exam Success!

The common signs of an anaphylactic reaction include difficulty breathing, swelling, rapid heart rate, and hives. This is because anaphylaxis is a severe and potentially life-threatening allergic reaction that occurs quickly after exposure to an allergen. Difficulty breathing arises from inflammation and constriction of the airways, which restricts airflow. Swelling, particularly in the throat or face, can further obstruct breathing passages. A rapid heart rate is a response to the body’s stress, attempting to maintain blood flow and oxygenation in the face of anaphylaxis. Hives are raised, itchy welts on the skin that result from the body's release of histamine during the allergic response.

In contrast, the other options present symptoms that are either non-specific or not typical of anaphylaxis. For example, the symptoms listed in the first option, such as dry skin and fatigue, do not relate directly to the acute and severe nature of an anaphylactic reaction. The third option's symptoms focus more on gastrointestinal and joint-related issues rather than the systemic reactions seen in anaphylaxis. The fourth option includes symptoms like soreness and pain, which again are not direct indicators of anaphylaxis. Overall, choice B accurately captures the critical and immediate symptoms associated with