What is a common adverse effect observed after administering block injections?

The choice indicating jaw pain or limitation in movement is a common adverse effect after administering block injections, particularly when targeting the mandibular area. These injections can inadvertently affect the surrounding muscles and tissues, leading to temporary discomfort or restricted movement in the jaw. This phenomenon may arise from several factors, including anxiety or muscular tension during the procedure, localized swelling, or hematoma formation near the injection site.

While other options present potential adverse effects, they are less commonly associated with block injections. For instance, difficulty swallowing and swelling at the injection site can occur but are not as prevalent or characteristic of the effects seen with block injections specifically. Lack of sensation in the lips may happen as a direct result of the intended anesthesia affecting nearby nerves, but it is typically a sought goal of the injection rather than an adverse effect per se, as the practitioner aims for numbness during procedures.