The nurse is caring for the client following a cerebral vascular accident. Which portion of the brain is responsible for taste, smell and hearing?

Appeared in: DHS Staff Nurse - 2018 (Shift-2nd)

Explanation

The temporal lobe contains the primary auditory cortex, which is essential for processing sounds and the sense of hearing.
The olfactory cortex, responsible for the sense of smell, is also located within the temporal lobe.
Although the parietal lobe is involved in taste, the temporal lobe is the only option that is the primary center for two of the three functions listed (hearing and smell), making it the best answer.

Option A: The occipital lobe is primarily dedicated to processing visual information from the eyes.
Option B: The frontal lobe is mainly responsible for higher executive functions like planning, personality, and voluntary motor control.
Option D: The parietal lobe processes somatosensory information like touch, pain, and temperature, and is involved in spatial awareness. While it plays a role in taste, it is not responsible for hearing or smell.

Clinical Relevance

Nursing practice connection: Use the key finding related to Functions of the cerebral lobes to guide bedside assessment, documentation, and the next nursing action.
When caring for a patient post-CVA, a nurse's understanding of cerebral lobe function is crucial for anticipating deficits and planning care. For temporal lobe damage, this means assessing hearing, smell, and language comprehension.
A key nursing intervention is ensuring patient safety. A patient who cannot smell may not detect a gas leak or spoiled food. A patient who cannot hear may not respond to alarms or calls for help.
What if the stroke had affected the occipital lobe instead? The nurse's priority assessment would shift to visual deficits, such as loss of a portion of the visual field (hemianopsia), and implementing safety measures to prevent falls and injuries related to impaired sight.

How to Approach the Question

First, identify the key functions mentioned in the question: taste, smell, and hearing.
Next, systematically review the primary roles of each brain lobe provided in the options.
Recall or deduce that the occipital lobe is for vision and the frontal lobe is for executive function and motor control, eliminating them as likely answers.
Compare the remaining options, parietal and temporal. The temporal lobe is the primary center for hearing and smell. The parietal lobe is for general sensation and taste.
Select the option that accounts for the majority or the most distinct of the listed functions. The temporal lobe is responsible for two of the three (hearing and smell), making it the best fit.

Concept Tested & Keywords

Concept Tested: Functions of the cerebral lobes
Stem keywords: cerebral vascular accident, brain, taste, smell, hearing
Lead-in keywords: responsible for
Clinical cues: The patient has had a cerebral vascular accident, which implies a neurological deficit based on the location of the brain injury.
Negative lead-in flag: false

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E6 Medicine Davidson Principles Practice 24e p. 1086-1088

Practise the full DHS Staff Nurse - 2018 (Shift-2nd)

Attempt every question from this paper in a timed mock, then review the full solution for each one.