A patient presents to the emergency department (ED) with a two-hour history of hemiparesis of the right arm and leg. Also, it is noted during assessment (examination) that the left side of her face moves normally, but the other side droops. Identify the item which helps to explain the connection between the pathophysiology of this illness and the pattern of signs and symptoms (555)
Ischemia of the brain tissue is causing cellular injury, swelling and malfunction of the contralateral side
The functioning of the right cranial nerve controlling facial movement is compromised by cerebral edema
The sensorimotor tracts leading from the brain to the body decussate and control the arm and leg on the same side as the lesion,
The corticospinal tracts leading from the brain to the body decussate and control the ipsilateral arm and leg.
The Correct Answer is A
A. Ischemia of the brain tissue is causing cellular injury, swelling, and malfunction of the contralateral side: Hemiparesis occurs on the side opposite to the brain lesion due to the crossing (decussation) of motor pathways.
B. The functioning of the right cranial nerve controlling facial movement is compromised by cerebral edema: While facial nerve involvement can cause drooping, the hemiparesis suggests a central (brain) rather than peripheral issue.
C. The sensorimotor tracts leading from the brain to the body decussate and control the arm and leg on the same side as the lesion: This is incorrect because the tracts control the contralateral side of the body.
D. The corticospinal tracts leading from the brain to the body decussate and control the ipsilateral arm and leg: This is incorrect; the corticospinal tracts control the contralateral side.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Appendicitis: Appendicitis typically presents with right lower quadrant pain, not LLQ pain.
B. Barrett's esophagus: Barrett's esophagus is a condition associated with chronic GERD and does not cause leukocytosis, fever, or LLQ pain.
C. Diverticulitis: Diverticulitis often presents with LLQ pain, fever, and leukocytosis due to inflammation or infection of the diverticula in the colon.
D. Irritable bowel syndrome (IBS): IBS may cause abdominal pain, but it does not cause fever or leukocytosis, and the pain is typically relieved with defecation and not localized to the LLQ.
Correct Answer is B
Explanation
A. Elevating the head of the bed promotes venous return and helps increase the ICP: This is incorrect. Elevation of the head of the bed helps to decrease intracranial pressure (ICP) by promoting venous drainage rather than increasing it.
B. Elevation of the head of the bed aids in maintaining cerebral perfusion: Elevating the head of the bed helps to decrease ICP, which in turn aids in maintaining adequate cerebral perfusion pressure.
C. Elevation of the head of the bed will increase intracranial pressure (ICP): This is incorrect. Elevation of the head of the bed is intended to reduce ICP, not increase it.
D. The nurse should keep the head of the bed flat to ensure adequate arterial circulation: This is incorrect. Keeping the head of the bed flat can increase ICP, which is counterproductive in managing intracranial pressure.
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