An acute care nurse receives a shift report for a client who has increased intracranial pressure. The nurse is told that the client demonstrates decorticate posturing. Which of the following findings should the nurse expect to observe when assessing the client?
Pronation of the hands.
Extension of the arms.
External rotation of the lower extremities.
Plantar flexion of the legs.
The Correct Answer is D
Choice A Reason:
Pronation of the hands.
Pronation of the hands is not typically associated with decorticate posturing. Decorticate posturing is characterized by the flexion of the arms and wrists, with the hands often clenched into fists. Pronation refers to the rotation of the hands so that the palms face downward, which is not a feature of decorticate posturing.
Choice B Reason:
Extension of the arms.
Extension of the arms is more characteristic of decerebrate posturing, not decorticate posturing. In decorticate posturing, the arms are flexed and held tightly to the chest, not extended. This flexion is due to damage to the cerebral hemispheres, which affects the corticospinal tract.
Choice C Reason:
External rotation of the lower extremities.
External rotation of the lower extremities is not a typical finding in decorticate posturing. In decorticate posturing, the legs are usually extended and rigid, with the toes pointed. External rotation would indicate a different type of posturing or neurological condition.
Choice D Reason:
Plantar flexion of the legs.
Plantar flexion of the legs is a characteristic finding in decorticate posturing. This involves the toes pointing downward, which is a result of the increased muscle tone and reflexes due to the brain injury. This posture indicates severe damage to the brain, specifically the corticospinal tract.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A Reason:
Activating the hospital’s emergency or rapid response system is the most appropriate first action in this scenario. The client is exhibiting signs of a potentially life-threatening condition, such as airway obstruction or severe swelling that could compromise breathing. Immediate intervention by a rapid response team can provide the necessary advanced airway management and other critical care measures to stabilize the patient. This action prioritizes the client’s airway, breathing, and circulation, which are the fundamental aspects of emergency care.
Choice B Reason:
Placing a heart monitor on the client and observing for dysrhythmias is important but not the immediate priority in this situation. While monitoring the heart is crucial, the client’s airway and breathing issues take precedence. Addressing the airway obstruction and ensuring adequate breathing should be the first step before focusing on cardiac monitoring.
Choice C Reason:
Asking the charge nurse to come see the client immediately is a reasonable action, but it may delay the necessary urgent intervention. The charge nurse may not have the advanced skills or equipment required to manage a severe airway obstruction. Activating the rapid response system ensures that a team of healthcare professionals with the appropriate expertise and equipment can respond quickly.
Choice D Reason:
Checking the client’s blood pressure and heart rate is a standard nursing assessment, but it is not the immediate priority in this emergency situation. The client’s difficulty breathing and stridor indicate a potential airway obstruction, which requires immediate attention. Ensuring the airway is clear and the client can breathe is more critical than checking vital signs at this moment.
Choice E Reason:
Providing a calm and assuring environment for the client is important for reducing anxiety and stress, but it does not address the immediate life-threatening issue. While maintaining a calm environment is beneficial, the nurse must first ensure that the client’s airway is secure and that they can breathe adequately. This can only be achieved by activating the rapid response system.
Correct Answer is C
Explanation
Choice A Reason:
The client who displays plantar flexion when the bottom of the foot is stroked is exhibiting a normal reflex response known as the plantar reflex. This response indicates that the corticospinal tract is functioning properly. In adults, the normal response is plantar flexion of the toes, which means the toes curl downward. This is not an immediate cause for concern and does not indicate a life-threatening condition.
Choice B Reason:
The client who consistently demonstrates decortication when stimulated is showing signs of severe brain injury. Decorticate posturing is characterized by the arms being flexed at the elbows and held tightly to the chest, with the legs extended and feet turned inward. This type of posturing indicates damage to the cerebral hemispheres, thalamus, or midbrain. While this is a serious condition, it is not necessarily the most immediate priority compared to a sudden change in the Glasgow Coma Scale.
Choice C Reason:
The client whose Glasgow Coma Scale (GCS) has changed from 15 to 12 is the nurse’s first priority. The GCS is a critical tool used to assess a patient’s level of consciousness, with scores ranging from 3 (deep coma) to 15 (fully awake and alert). A drop in GCS score indicates a significant decline in neurological function, which could be due to increased intracranial pressure, bleeding, or other acute changes in the brain. This requires immediate assessment and intervention to prevent further deterioration.
Choice D Reason:
The client whose deep tendon reflexes have become hyperactive is showing signs of hyperreflexia. Hyperactive reflexes can indicate an upper motor neuron lesion, which affects the descending corticospinal tract. While this is a concerning sign that warrants further investigation, it is not as immediately critical as a sudden change in the GCS score.
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