Certified Emergency Nurse (CEN) Practice Test

The term that refers to a forced spasm of the trunk and pelvic muscles leading to bizarre body postures is known as a dystonic reaction. This involuntary muscle contraction can occur in various situations, most commonly as a side effect of certain medications, especially antipsychotics, which can lead to abnormal postures and movements. Dystonic reactions involve sustained muscle contractions and can affect the muscle tone and motor function, causing discomfort and a range of abnormal twisting and posturing.

The other terms listed do not specifically describe this involuntary muscle spasm and resultant body posture. "Tortipelvic crisis" is not a recognized medical term in this context. "Buccolingual crisis" refers specifically to spasms of the tongue and facial muscles, rather than the trunk and pelvic region. "Serotonin syndrome" is a potentially life-threatening condition due to excess serotonin and involves a range of symptoms including agitation, confusion, and neuromuscular abnormalities, but it does not specifically refer to forced spasms of the trunk and pelvis.

In summary, the recognition that a dystonic reaction describes the forced spasm of trunk and pelvic muscles leading to unusual postures clarifies the nature of the condition in question.