Nokea
Preparing the body for "fight-or-flight" response during threatening situations is the role of the:
- A. sympathetic nervous system
- B. cerebrum
- C. parasympathetic nervous system
- D. somatic nervous system
Correct Answer: A
Rationale: The sympathetic nervous system prepares the body for 'fight-or-flight' responses during threatening situations by increasing heart rate, dilating pupils, and redirecting blood flow. The parasympathetic nervous system has the opposite effect, while the cerebrum, somatic nervous system, and afferent nervous system are not primarily responsible for this response. Thus, A is the correct answer.
You may also like to solve these questions
Trigeminal nerve impairment produces the following symptoms:
- A. plegia in half of the face
- B. ache paroxysm in half of the face
- C. disturbance of swallowing
- D. ache in half of the head
Correct Answer: B
Rationale: Ache paroxysm in half of the face is the correct answer because the trigeminal nerve is responsible for sensory innervation of the face and motor control of the muscles of mastication. Damage to this nerve, as seen in trigeminal neuralgia, results in severe, episodic facial pain.
A patient is admitted to the emergency department with a spinal cord injury at the level of T2. Which finding is of most concern to the nurse?
- A. SpO2 of 92%
- B. Heart rate of 42 bpm
- C. Blood pressure of 88/60 mm Hg
- D. Loss of motor and sensory function in arms and legs
Correct Answer: B
Rationale: Bradycardia is concerning due to autonomic dysreflexia.
The clinical diagnosis of parkinsonism is based on the presence of bradykinesia and at least one of three other features: muscular rigidity, resting tremor, and:
- A. Dystonia
- B. Nystagmus
- C. Postural instability
- D. Seizures
Correct Answer: C
Rationale: Postural instability is a key feature of parkinsonism, along with bradykinesia, rigidity, and resting tremor. It contributes to the risk of falls and mobility issues.
A nurse is assessing a client who has returned from a cerebral arteriogram. The left carotid site was punctured. Which of the following indicates complications?
- A. Difficulty swallowing (hematoma develops and pushes on the trachea)
- B. Puncture site is dry and red
- C. BP 120/82, HR 86, RR 22
- D. No swelling or hematoma at the site
Correct Answer: A
Rationale: Difficulty swallowing after a cerebral arteriogram may indicate a hematoma at the puncture site, which can compress the trachea and cause respiratory distress. This is a serious complication requiring immediate intervention to prevent airway obstruction and further complications.
As Susan prepares for discharge, it is essential to teach her to
- A. take anticholinergic drugs as ordered with meals
- B. avoid respiratory infection
- C. increase activities
- D. take sedatives to ensure sound sleep
Correct Answer: B
Rationale: Respiratory infections can exacerbate myasthenia gravis symptoms.