A patient arrives at the emergency center with a severe head injury. During assessment, the nurse observes that the patient is unresponsive, adducts the arms tightly against the thorax, and plantar flexes the feet while internally rotating them. How would the nurse document this abnormal posture?
Opisthotonos
Flaccid quadriplegia
Decorticate rigidity
Decerebrate rigidity
The Correct Answer is D
Choice A reason: Opisthotonos is a severe arching of the back with hyperextension of the neck and limbs due to intense muscle spasms, often linked to tetanus or severe meningitis. It does not involve the specific arm adduction and foot plantar flexion with internal rotation described. This posture is unrelated to the neurological damage indicated, as it reflects a different pathological mechanism.
Choice B reason: Flaccid quadriplegia involves complete loss of muscle tone and voluntary movement in all four limbs, typically from spinal cord injury or neuromuscular disorders. The patient’s rigid arm adduction and plantar flexion indicate active muscle contraction, not flaccidity, making this an incorrect descriptor for the observed posture.
Choice C reason: Decorticate rigidity features arm flexion, clenched fists, and extended legs, typically due to cerebral cortex or internal capsule damage above the brainstem. The patient’s arm adduction and foot plantar flexion with internal rotation do not match this pattern, as decorticate posture lacks the internal rotation component.
Choice D reason: Decerebrate rigidity is marked by arm adduction, extension, and internal rotation, with legs extended and feet plantar flexed, as observed. This results from severe brainstem injury below the midbrain, disrupting corticospinal and vestibulospinal tracts, leading to unopposed extensor activity, accurately describing the patient’s posture.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A reason: In a conscious, alert, and oriented patient, the subjective report is the most reliable pain indicator, as pain is a subjective experience. The patient’s description of intensity, location, and quality directly reflects their perception, guided by neurological pain pathways, making this the gold standard.
Choice B reason: Vital signs like elevated heart rate or blood pressure may suggest pain but are nonspecific, as they can result from anxiety, exertion, or other conditions. They are less reliable than the patient’s verbal report, which directly conveys the pain experience.
Choice C reason: X-ray results may identify structural issues but cannot directly assess pain, a subjective sensation processed by the brain’s pain pathways. They are diagnostic, not experiential, making them unreliable for gauging pain in a conscious patient.
Choice D reason: Physical examination findings, like guarding or grimacing, are indirect pain indicators and less reliable than the patient’s subjective report. These signs may be absent or misleading in some patients, making the verbal description more accurate for pain assessment.
Correct Answer is D
Explanation
Choice A reason: The submandibular glands are palpable below the mandible, but occipital glands do not exist as salivary glands. The occipital region relates to lymph nodes or muscles, not salivary structures, making this an incorrect pair for palpation.
Choice B reason: The parotid glands are palpable near the ears, but jugulodigastric refers to lymph nodes, not salivary glands. This misidentification of anatomical structures makes this pair incorrect for assessing salivary gland palpation.
Choice C reason: Occipital and submental regions do not contain salivary glands. Submental lymph nodes exist, but neither these nor occipital structures are salivary glands, making this pair anatomically incorrect for the nurse’s palpation assessment.
Choice D reason: The parotid glands, located anterior to the ears, and submandibular glands, below the mandible, are the two pairs of salivary glands accessible for palpation. Their anatomical positions allow external assessment, making this the correct choice.
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