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

Answer and Explanation

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.

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Correct Answer is B

Explanation

Choice A reason: Herniated brainstem causes bilateral pupil changes and severe neurological signs, not unilateral dilation. Unilateral pupil dilation suggests increased intracranial pressure, so this is incorrect for these findings.

Choice B reason: Unilateral pupil dilation and nonreactivity, as seen in the right pupil, indicate increased intracranial pressure, often from mass effect compressing the oculomotor nerve. This is critical, making it the correct finding.

Choice C reason: Subdural hemorrhage may cause pressure but isn’t specific to these pupil changes. Unilateral dilation points to increased intracranial pressure as the immediate concern, so this is less precise.

Choice D reason: Cerebral edema contributes to pressure but is a broader term. Unilateral pupil dilation specifically suggests increased intracranial pressure, a more immediate and precise diagnosis, so this is incorrect.

A. Alcohol can interact with medications and can make some diseases worse B. This information is necessary to determine the patient’s reliability C. This information is not necessary unless a drinking problem is obvious D. The nurse needs to be able to teach all patients to avoid any alcohol consumption

Correct Answer is A

Explanation

Choice A reason: Alcohol can interact with medications, altering their metabolism via liver enzymes (e.g., CYP450), and exacerbate conditions like liver disease or hypertension. This information is critical for safe treatment planning, making it the primary reason for inquiry.

Choice B reason: Assessing patient reliability is not the purpose of asking about alcohol use. This question focuses on clinical implications, not trustworthiness, as alcohol’s effects on health and medications are the priority, making this an incorrect rationale.

Choice C reason: Alcohol use is relevant even without an obvious drinking problem, as even moderate consumption can affect medication efficacy or disease progression. Dismissing this question unless a problem is evident overlooks potential risks, making this incorrect.

Choice D reason: Teaching all patients to avoid alcohol is not universally necessary, as moderate use may be safe for some. The inquiry aims to identify specific risks, like drug interactions, not to enforce blanket abstinence, making this an incorrect reason.

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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?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

Correct Answer is B

Explanation

In response to a question regarding the use of alcohol, a patient asks the nurse why the nurse needs to know. What is the reason for needing this information?

Correct Answer is A

Explanation

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