The nurse is assessing a client with a traumatic brain injury who is experiencing decorticate posturing.
Which assessment change indicates the client is improving?
The client has purposeful movement to painful stimuli.
The client reacts to painful stimuli with decerebrate posturing.
The client's pupils are nonreactive at 6 mm.
The client has developed flaccid paralysis in all four extremities.
The Correct Answer is A
Neurological assessment using motor responses helps determine the level of brainstem involvement. This scenario requires applying knowledge of the Glasgow Coma Scale and motor pathways to distinguish between pathological posturing and more integrated, purposeful motor functions.
Choice A rationale
Purposeful movement indicates that the motor cortex or higher brain centers are successfully processing stimuli. Moving away from pain represents a significant improvement from decorticate posturing, which involves damage to the corticospinal tract and midbrain.
Choice B rationale
Decerebrate posturing involves rigid extension of the arms and legs, signifying deeper brainstem injury or herniation. This change indicates neurological deterioration rather than improvement, as it suggests the lesion has progressed lower into the pons.
Choice C rationale
Pupils that are fixed and dilated at 6 mm indicate loss of autonomic function and severe cranial nerve III compression. This is a sign of increasing intracranial pressure and brainstem failure, representing a critical clinical decline.
Choice D rationale
Flaccid paralysis is often the most severe motor finding, indicating a loss of all muscle tone and spinal reflex arcs. In the context of traumatic brain injury, this usually signals profound neurological collapse rather than recovery..
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Identifying cardiac arrhythmias requires understanding the relationship between electrical conduction and mechanical output. Knowledge of pulse deficits is necessary to recognize when rapid, irregular atrial contractions fail to produce adequate ventricular filling and a palpable peripheral pulse.
Choice A rationale
Blood pressure discrepancies between the upper limbs usually indicate vascular issues like aortic dissection or peripheral arterial disease. Atrial fibrillation affects the rhythm and volume of the pulse rather than creating localized pressure differences between the arms.
Choice B rationale
Variations in lung sounds typically suggest localized pulmonary pathology such as pneumonia or pleural effusion. While atrial fibrillation can lead to heart failure and pulmonary edema, it does not specifically cause differences between upper and lower sounds.
Choice C rationale
A pulse deficit occurs when the apical heart rate is higher than the radial rate. In atrial fibrillation, some ventricular contractions are too weak to perfuse to the periphery, making this a classic assessment finding.
Choice D rationale
Discrepancies between oral and axillary temperatures relate to thermoregulation and measurement accuracy rather than cardiac rhythm. Temperature monitoring is used to screen for infection or inflammation but does not provide diagnostic information regarding atrial arrhythmias..
Correct Answer is A
Explanation
This scenario requires evaluating medical orders against a client's specific allergy profile to morphine, iodine, and codeine. Knowledge of hypersensitivity reactions to intravenous contrast media and the safe selection of analgesics is necessary to ensure patient safety and prevent potentially fatal allergic responses.
Choice A rationale
Iodine is a primary component of many intravenous contrast agents used in imaging. The client's documented iodine allergy necessitates questioning this order to avoid life-threatening systemic reactions, such as angioedema or airway obstruction, typically associated with radiopaque medium exposure.
Choice B rationale
Therapeutic lifestyle changes, including dietary modifications, are foundational in stroke prevention. Reducing dietary fats and cholesterol helps mitigate cardiovascular risk factors, supporting the long-term management of transient ischemic attacks without conflicting with the client's specific known drug allergies.
Choice C rationale
Protocol-based vital sign monitoring ensures the early detection of neurological or hemodynamic instability. This order is a standard of care for any patient presenting with cerebrovascular symptoms and carries no risk related to the client's iodine or opioid sensitivities.
Choice D rationale
Acetaminophen belongs to the para-aminophenol derivative class of medications. It does not possess the structural components of phenanthrene alkaloids like morphine or codeine, making it a safe alternative for treating mild to moderate pain in opioid-allergic individuals..
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