A nurse applies a painful stimulus to the nailbeds of an unconscious patient. The patient responds with extension of the arms and legs, pronation of the arms, and plantar flexion. The nurse documents this as:
Decorticate posturing
Flexion withdrawal
Localization of pain
Decerebrate posturing
The Correct Answer is D
Choice A reason:
Decorticate posturing involves abnormal flexion of the arms towards the chest and extension of the legs. This posture indicates damage to the corticospinal tract at the level of the diencephalon. The described response does not match decorticate posturing.
Choice B reason:
Flexion withdrawal is a response to painful stimuli where the patient pulls away or flexes the affected limb. This is a less severe response than posturing and does not match the description provided in the scenario.
Choice C reason:
Localization of pain refers to the patient's ability to purposefully move a hand to the site of a painful stimulus, indicating higher brain function. The described response of arm and leg extension with pronation does not fit this description.
Choice D reason:
Decerebrate posturing is characterized by extension of the arms and legs, pronation of the arms, and plantar flexion. This posture indicates severe brainstem damage and is consistent with the described response.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A reason:
Arterial Blood Gas (ABG) analysis is the best method to determine the effectiveness of treatments in a client receiving mechanical ventilation. ABGs provide direct information about the patient's oxygenation, ventilation, and acid-base status, which are critical in managing acute respiratory failure.
Choice B reason:
While blood pressure is important for overall patient monitoring, it does not provide specific information about the effectiveness of ventilation and respiratory status. It is more related to hemodynamic stability.
Choice C reason:
Capillary refill can provide some information about peripheral perfusion but is not specific enough to assess the effectiveness of mechanical ventilation or respiratory treatments.
Choice D reason:
Heart rate is a vital sign that can indicate the patient's overall condition but does not specifically assess the effectiveness of ventilation or respiratory treatments. It should be considered along with other more specific respiratory assessments.
Correct Answer is A
Explanation
Choice A reason:
Assessing the client's serum sodium level is the priority action. The symptoms of generalized edema, decreased urine output, acute confusion, and muscle weakness are suggestive of possible hyponatremia or other electrolyte imbalances, which can be critical in the postoperative period following a craniotomy. Checking the serum sodium level will provide essential information to guide further treatment.
Choice B reason:
While continuing to monitor the client's urinary output is important, it does not address the immediate need to diagnose and correct a potential electrolyte imbalance. The nurse needs to take action to determine the underlying cause of the patient's symptoms.
Choice C reason:
Increasing the rate of the IV infusion could potentially worsen the patient's condition, especially if the symptoms are related to fluid overload or electrolyte imbalance. This action should only be taken based on specific clinical indications and after appropriate assessments.
Choice D reason:
Administering desmopressin IV per protocol is not appropriate as the first action without confirming the underlying cause of the symptoms. Desmopressin is used for specific conditions such as diabetes insipidus, and its administration should be based on a confirmed diagnosis.
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