Nokea
What happens at the synapse?
- A. The synapse physically joins two neurons.
- B. The nerve impulse is transmitted only from one neuron to another neuron.
- C. The presynaptic terminal submits a nerve impulse through the synaptic cleft to the receptor site on the postsynaptic cell.
- D. When a presynaptic cell releases excitatory neurotransmitters, the postsynaptic cell depolarizes enough to generate an action potential.
Correct Answer: C
Rationale: The synaptic transmission involves the presynaptic terminal sending impulses across the synaptic cleft.
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Which of the following is a traumatic brain injury:
- A. cerebrovascular accident (CVA)
- B. Alzheimer's disease
- C. aphasia
- D. cerebral edema
Correct Answer: D
Rationale: Cerebral edema, or swelling of the brain, is a traumatic brain injury resulting from physical trauma. Cerebrovascular accidents, Alzheimer's disease, aphasia, and Parkinson's disease are not traumatic injuries. Therefore, D is the correct answer.
Following a knee arthroplasty, a patient has a continuous passive motion machine for the affected joint. The nurse explains to the patient that this device is used for what purpose?
- A. To relieve edema and pain at the incision site
- B. To promote early joint mobility and increase knee flexion
- C. To prevent venous stasis and the formation of a deep venous thrombosis
- D. To improve arterial circulation to the affected extremity to promote healing
Correct Answer: B
Rationale: Continuous passive motion enhances joint mobility.
Nurse Davis is about to perform an initial assessment on Mrs. Allen, a 64-year-old woman admitted with advanced Parkinson's Disease. Nurse Davis is aware that certain characteristics are indicative of this stage of the disease. Which of the following does Nurse Davis recognize as a characteristic of a patient with advanced Parkinson's disease?
- A. Disturbed vision.
- B. Mask-like facial expression.
- C. Muscle atrophy.
- D. Forgetfulness.
Correct Answer: B
Rationale: A mask-like facial expression is a common feature of advanced Parkinson's disease due to reduced facial muscle movement.
During the patient's process of grieving for the losses resulting from spinal cord injury, what should the nurse do?
- A. Help the patient to understand that working through the grief will be a lifelong process
- B. Assist the patient to move through all stages of the mourning process to acceptance
- C. Let the patient know that anger directed at the staff or the family is not a positive coping mechanism
- D. Facilitate the grieving process so that it is completed by the time the patient is discharged from rehabilitation
Correct Answer: A
Rationale: Grieving is a long-term process requiring ongoing support.
The presence of ataxia suggests damage to any of the following EXCEPT:
- A. cerebellar
- B. thalamus
- C. vestibular nucleus
- D. vagal nerve
Correct Answer: D
Rationale: Vagal nerve is the correct answer because ataxia, which is a lack of coordination, is typically associated with damage to the cerebellum, thalamus, or vestibular system. The vagal nerve, however, is primarily involved in autonomic functions and does not play a direct role in motor coordination.