A nurse is caring for an older adult client in the emergency department who sustained a head injury due to a fall. Which of the following are common reasons for head injuries in older adults?
(Select All that Apply.)
Decreased visual acuity
Motor vehicle crashes
Polypharmacy
Weakness
Chronic hypertension
Previous military experience
Correct Answer : A,C,D,E
Choice A Reason:
Decreased visual acuity is correct. Yes, decreased visual acuity, including issues such as poor depth perception, reduced peripheral vision, and difficulty with contrast sensitivity, can contribute to falls and head injuries in older adults.
Choice B Reason:
Motor vehicle crashes is incorrect. While motor vehicle crashes can cause head injuries in individuals of all ages, they are less common among older adults compared to younger age groups.
Choice C Reason:
Polypharmacy is correct. Yes, polypharmacy, which refers to the use of multiple medications concurrently, is a common risk factor for falls and head injuries in older adults. Certain medications, especially those with sedative or psychotropic effects, can increase the risk of falls and accidents.
Choice D Reason:
Weakness is correct. Yes, weakness, frailty, and decreased muscle strength are common age-related changes that can increase the risk of falls and subsequent head injuries in older adults.
Choice E Reason:
Chronic hypertension, particularly when poorly controlled, can contribute to an increased risk of falls in older adults through various mechanisms:Hypertension medications or the condition itself can lead to orthostatic hypotension. This can cause dizziness or lightheadedness, increasing the risk of falls. Chronic hypertension is a major risk factor for cerebrovascular disease, including strokes. These events can lead to neurological deficits such as weakness, numbness, or impaired balance, predisposing individuals to falls.
Choice F Reason:
Previous military experience is incorrect. While previous military experience may contribute to certain health conditions or injuries in older adults, it is not a common reason for head injuries specifically related to falls or accidents in this population.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A Reason:
Placing the client on clear liquids might not be appropriate in this situation because absent bowel sounds in the lower abdominal quadrants could indicate a more serious gastrointestinal issue such as ileus or bowel obstruction. Clear liquids may exacerbate these conditions and are not sufficient to address the underlying problem. Therefore, this option is not recommended until the cause of absent bowel sounds is identified and addressed.
Choice B Reason:
Performing a hemoccult blood test is not directly relevant to the situation described. Hemoccult tests are used to detect occult (hidden) blood in stool, which can be indicative of gastrointestinal bleeding. While it's important to assess for gastrointestinal bleeding in some cases, absent bowel sounds in the lower abdominal quadrants suggest a more immediate concern related to gastrointestinal motility rather than bleeding. Therefore, this option is not the most appropriate action at this time.
Choice C Reason:
Inserting a nasogastric tube is the most appropriate action in this scenario. Absent bowel sounds in a client with a spinal cord injury can indicate neurogenic bowel dysfunction, which may lead to abdominal distention and discomfort. Inserting a nasogastric tube can help decompress the stomach and intestines, reducing the risk of complications such as aspiration and providing relief from discomfort. It can also help manage gastrointestinal complications until further assessment and interventions can be implemented.
Choice D Reason:
Forcing the intake of fluids may not be appropriate without further assessment and could potentially worsen the client's condition if there is an underlying gastrointestinal issue leading to absent bowel sounds. Additionally, forcing fluids may not address the potential issue of gastrointestinal bleeding.
Correct Answer is B
Explanation
Choice A Reason:
Flail chest is incorrect. Flail chest is a condition characterized by multiple rib fractures, causing instability in the chest wall. While it can lead to respiratory distress, it doesn't directly cause ventilation-perfusion (V/Q) mismatch. Instead, it impairs the mechanics of breathing by compromising chest wall integrity.
Choice B Reason:
Emphysema is a chronic obstructive pulmonary disease (COPD) where the alveolar walls are destroyed, leading to a loss of surface area for gas exchange. This results in areas of the lungs that are well-perfused but poorly ventilated, causing a V/Q mismatch. The damage to alveoli leads to impaired ventilation, while blood flow may still be adequate, leading to hypoxemia (low oxygen levels in the blood).
Choice C Reason:
CHF primarily affects the heart’s ability to pump blood effectively, leading to pulmonary congestion and impaired gas exchange. However, it typically causes diffusion defects rather than a direct ventilation-perfusion mismatch. V/Q mismatch may occur secondary to pulmonary edema, but it’s not the primary mechanism of respiratory failure in CHF.
Choice D Reason:
Guillain-Barré syndrome is incorrect. Guillain-Barré syndrome (GBS) is a neurological disorder that affects the peripheral nervous system, leading to muscle weakness and paralysis. While respiratory muscle weakness can occur in GBS, it doesn't directly cause ventilation-perfusion (V/Q) mismatch. GBS primarily affects nerve function rather than lung function.

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