Nokea
Fibrillations (fasciculations) may develop with disease in:
- A. lateral column of the spinal cord
- B. posterior horn of the spinal cord
- C. anterior horn of the spinal cord
- D. internal capsule
Correct Answer: C
Rationale: Anterior horn of the spinal cord is the correct answer because fibrillations and fasciculations are spontaneous muscle contractions that occur due to the degeneration of lower motor neurons located in the anterior horn. These contractions are a sign of denervation and are commonly seen in conditions like amyotrophic lateral sclerosis (ALS).
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A patient is admitted with an open fracture of the tibia following a bicycle accident. During assessment of the patient, what specifically should the nurse question the patient about?
- A. Any previous injuries to the leg
- B. The status of tetanus immunization
- C. The use of antibiotics in the last month
- D. Whether the injury was exposed to dirt or gravel
Correct Answer: B
Rationale: Tetanus prophylaxis is crucial in open fractures due to the risk of contamination.
What is the term for the body of a neuron?
- A. dendrite
- B. axon
- C. filament
- D. soma
Correct Answer: D
Rationale: The soma, or cell body, of a neuron contains the nucleus and other organelles necessary for cellular functions. It is responsible for maintaining the cell's metabolic activities and integrating incoming signals from dendrites.
One focus of collaborative care of patients with AD is
- A. Replacement of deficient acetylcholine in the brain
- B. Drug therapy for cognitive problems and undesirable behaviors
- C. The use of memory-enhancing techniques to delay disease progression
- D. Prevention of other chronic diseases that hasten the progression of AD
Correct Answer: B
Rationale: Drug therapy addresses cognitive and behavioral issues in AD
A patient with a fractured right hip has an anterior open reduction and internal fixation of the fracture. What should the nurse plan to do postoperatively?
- A. Get the patient up to the chair on the first postoperative day.
- B. Position the patient only on the back and the unoperative side.
- C. Keep the leg abductor pillow on the patient even when bathing.
- D. Ambulate the patient with partial weight bearing by discharge.
Correct Answer: C
Rationale: Using an abductor pillow maintains proper alignment.
Neuroglial cells support and provide nutrition for the ________.
- A. muscle cells
- B. glands
- C. neurons
- D. nephrons
Correct Answer: C
Rationale: Neuroglial cells, also known as glial cells, are non-neuronal cells that provide support and nutrition to neurons. They play essential roles in maintaining homeostasis, forming myelin sheaths, and protecting neurons from damage. Types of neuroglial cells include astrocytes, oligodendrocytes, microglia, and Schwann cells. These cells ensure the proper functioning of the nervous system by creating a supportive environment for neurons.