Nokea
Control of temperature, endocrine activity, metabolism, and thirst are functions associated with the:
- A. medulla oblongata
- B. cerebellum
- C. hypothalamus
- D. thalamus
Correct Answer: C
Rationale: The hypothalamus regulates temperature, endocrine activity, metabolism, and thirst. The medulla oblongata, cerebellum, thalamus, and cerebrum have different roles. Thus, C is the correct answer.
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If an individual suffers a traumatic event and has a neurological disorder that means they may be unable to recall anything from the moment of the injury or to retain memories of recent events. This is known as:
- A. anterograde amnesia
- B. retrograde amnesia
- C. postevent amnesia
- D. antenatal amnesia
Correct Answer: A
Rationale: Anterograde amnesia refers to the inability to form new memories after the onset of amnesia, often due to brain injury or trauma. This condition severely impacts an individual's ability to retain information about recent events, while memories from before the injury may remain intact. It is commonly associated with damage to the hippocampus, a brain region critical for memory formation and consolidation.
How can the nurse examine the client for stiffness and rigidity of the neck?
- A. By positioning the client flat on the bed for at least three hours.
- B. By moving the head and chin of the client towards the chest.
- C. By asking the client to bend and pick up small and large objects on the floor.
- D. By introducing a painful stimulus on the neck.
Correct Answer: B
Rationale: This movement checks for neck stiffness indicative of neurological issues.
The temperature & pin sense loss usually develops with disease in:
- A. anterior horns of spinal cord
- B. posterior horns of spinal cord
- C. lateral horns of spinal cord
- D. posterior columns of spinal cord
Correct Answer: B
Rationale: Posterior horns of the spinal cord are the correct answer because they are involved in processing sensory information, including pain and temperature. Damage to this area disrupts the transmission of these sensory signals, leading to a loss of temperature and pinprick sensation while preserving other sensory modalities.
An action potential:
- A. is essential for nerve impulse propagation
- B. involves the influx of negative ions to depolarize the membrane
- C. involves the outflux of negative ions to depolarize the membrane
- D. involves the outflux of positive ions to depolarize the membrane
Correct Answer: A
Rationale: An action potential is essential for nerve impulse propagation, as it is the electrical signal that travels along the neuron. It involves the influx of positive sodium ions to depolarize the membrane, not negative ions or potassium ion movements. Therefore, A is the correct answer.
MRS. Post is being discharged tomorrow on a regimen of prednisone and aspirin to control her symptoms of systemic lupus erythematosus. She should be told to call her physician immediately if which one of the following occurs?
- A. Missed menstrual period
- B. Inability to take oral medications because of vomiting
- C. Temperature elevated to 99.6°F
- D. Ankle edema
Correct Answer: B
Rationale: Vomiting can interfere with medication absorption and effectiveness.