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:
Baclofen is primarily used to treat muscle symptoms caused by multiple sclerosis, including muscle spasms, stiffness, and pain1. It acts on the spinal cord nerves to decrease the number and severity of muscle spasms, thereby improving muscle movement2. The effectiveness of baclofen in managing multiple sclerosis symptoms is best evaluated by assessing the reduction in muscle spasms.

Choice B reason:
While mood and affect are important aspects of a patient’s overall well-being, they are not the primary indicators of baclofen’s effectiveness. Baclofen does not have a direct impact on mood and affect, as its main function is to relieve muscle spasms and improve muscle movement.
Choice C reason:
Appetite is not a primary concern when evaluating the effectiveness of baclofen. This medication is not known to significantly affect appetite. The main therapeutic goal of baclofen is to reduce muscle spasms and improve mobility in patients with multiple sclerosis.
Choice D reason:
Sleep pattern, although important for overall health, is not the primary measure of baclofen’s effectiveness. Baclofen’s primary role is to alleviate muscle spasms and improve muscle function. While it may have some impact on sleep due to its muscle-relaxing properties, this is not the main criterion for evaluating its effectiveness.
Correct Answer is B
Explanation
Title: Choice A Reason:
Patients with seafood allergies may have a higher risk of allergic reactions to iodinated contrast media used in CT scans. However, this is not a definitive contraindication. The nurse should inform the patient to notify their healthcare provider about any known allergies, including seafood, as a precautionary measure. This allows the healthcare team to take necessary steps to prevent any adverse reactions, such as premedication with antihistamines or corticosteroids.
Title: Choice B Reason:
Metformin is a common medication used to manage type II diabetes. When a patient is scheduled for a CT scan with IV contrast, it is crucial to withhold Metformin before the procedure. This is because the combination of Metformin and iodinated contrast can increase the risk of contrast-induced nephropathy (CIN) and lactic acidosis, a rare but serious condition. The general recommendation is to stop Metformin at the time of or prior to the procedure and withhold it for 48 hours after the procedure, resuming only after renal function has been re-evaluated and found to be normal.
Title: Choice C Reason:
CT scans, especially those requiring IV contrast, are typically performed in a radiology suite equipped with the necessary technology and medical personnel. Performing such a procedure at the bedside is uncommon and not standard practice due to the need for specialized equipment and immediate access to emergency care in case of adverse reactions. Therefore, this statement is incorrect.
Title: Choice D Reason:
Taking Metformin as usual before the test is not recommended due to the risk of lactic acidosis when combined with iodinated contrast. As previously mentioned, Metformin should be withheld before and after the procedure until renal function is confirmed to be normal. This precaution helps to prevent any potential complications associated with the interaction between Metformin and the contrast agent.
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