Category: D

An infection that enters the fascial planes of the neck after originating in the oral cavity, pharynx, or a regional lymph node. It may be life threatening if the infection enters the carotid sheath, the paravertebral spaces, or the mediastinum. Death may also result from sepsis, asphyxiation, or hemorrhage. Aggressive surgical therapy is usually required…

Disintegrated physiological and neurobehavioral responses to the environment of the newborn.  

A semiquantitative tool used to evaluate a patient’s ability to modify gait by changing task demands, especially in patients with dizziness and balance deficits. This test is used to identify patients, especially seniors, who are predisposed to falling. Patients are graded on their ability to vary speed, turn the head, turn the body, step over…

Moral obligation or duty of caregivers, established by tradition and culture.  

In radiology, use of electronic means to subtract portions of the radiographic image in order to better visualize the object.  

A perceived image that occurs in strabismus when the visual axes of the eyes are not directed toward the same object.  

An image produced from radiation without secondary image receptors.  

The illumination of an object under a microscope in which the central or axial light rays are stopped and the object is illuminated by light rays coming from the sides, which causes the object to appear light against a dark background. This technique is used to observe extremely small objects such as spirochetes or colloid…

An unusual response to a drug. It can manifest as an accelerated, toxic, or inappropriate response to the usual therapeutic dose of a drug.  

Inability to distinguish between self and non-self.