A nurse is assessing an older adult client's risk for falls. Which of the following assessments should the nurse use to identify the client's safety needs? (Select all that apply.)
Visual acuity.
Visual fields.
Pupil clarity.
Appearance of bulbar conjunctivae.
Lacrimal apparatus.
Correct Answer : A,B
Choice A rationale
Visual acuity refers to the sharpness or clarity of vision at a specific distance, which is critical for identifying environmental hazards. Older adults often experience a decline in acuity due to conditions like cataracts or macular degeneration. If a client cannot clearly see a rug, a step, or a cord on the floor, their risk for stumbling increases significantly. Assessing this parameter allows the nurse to implement interventions such as corrective lenses or improved lighting.
Choice B rationale
Visual fields represent the total area in which objects can be seen in the peripheral vision while the eyes are focused on a central point. Many older adults suffer from a narrowed visual field due to glaucoma or strokes. A deficit in peripheral vision prevents the client from noticing objects or people approaching from the side. This lack of environmental awareness is a major contributor to falls, making field assessment vital for safety planning.
Choice C rationale
Pupil clarity refers to whether the lens behind the pupil appears clear or cloudy, which is primarily used to screen for cataracts. While cloudy lenses eventually affect vision, the physical assessment of clarity itself is a diagnostic observation of the eye structure rather than a direct functional assessment of fall risk. The nurse should focus on the functional outcome of the vision rather than just the anatomical appearance of the pupil when determining immediate safety needs.
Choice D rationale
The bulbar conjunctiva is the thin, transparent membrane covering the white part of the eye. Its appearance is assessed to check for signs of inflammation, infection, or anemia, such as redness or pallor. While these conditions are important for general health, they do not directly correlate with the mechanics of balance or the ability to navigate a physical environment safely. Therefore, inspecting the conjunctiva is not an effective tool for identifying a client's risk for falls.
Choice E rationale
The lacrimal apparatus is responsible for the production and drainage of tears to keep the eye lubricated. Assessing this system involves checking for excessive tearing or dryness. Chronic dry eyes can cause discomfort or blurred vision, but it is not a primary standardized assessment for fall risk in the older adult population. Clinical focus remains on visual processing and field perception, which have a more direct impact on gait and environmental navigation.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A rationale
The brachial pulse is located in the antecubital fossa and is primarily used for blood pressure measurement or assessing circulation in the infant. While it reflects systemic arterial pressure, it is not the standard peripheral site used for calculating a pulse deficit in adults. A pulse deficit occurs when the heart's contractions are too weak to transmit a palpable pressure wave to the periphery, and the radial artery is the conventional comparative site.
Choice B rationale
The dorsalis pedis pulse is found on the dorsal aspect of the foot and is used to evaluate peripheral vascular status in the lower extremities. Because of its significant distance from the heart, there is a natural delay and potential for dampened amplitude due to peripheral artery disease. It is not used for pulse deficit assessments because it does not provide a reliable immediate comparison to the central cardiac activity represented by the apical pulse.
Choice C rationale
A pulse deficit is determined by simultaneously measuring the apical pulse via auscultation and the radial pulse via palpation for one full minute. The radial artery is the most distal easily accessible site that should normally reflect every ventricular contraction. A difference between the apical and radial rates indicates that some cardiac contractions are not producing enough stroke volume to be felt peripherally, often seen in conditions like atrial fibrillation.
Choice D rationale
The carotid pulse is a central pulse located in the neck, reflecting pressure changes very close to the aorta. Because of its proximity to the heart, it is less likely to show a deficit compared to more distal peripheral sites. Using the carotid pulse would not accurately identify a pulse deficit because it usually remains palpable even when stroke volume is diminished, whereas the radial pulse would disappear, highlighting the discrepancy in perfusion.
Correct Answer is C
Explanation
Choice A rationale
Client 1 presents with stable vital signs. A temperature of 97.8 F, pulse of 66 bpm, respiratory rate of 14, and blood pressure of 122/72 mmHg are all within normal limits. An oxygen saturation of 97 percent is also excellent. This client is physiologically stable and does not require immediate intervention. The nurse should prioritize clients with abnormal respiratory parameters or signs of hypoxia over those who are maintaining normal homeostatic values and adequate oxygenation.
Choice B rationale
Client 2 has vital signs that are mostly within normal ranges. The temperature of 98.8 F and pulse of 82 are normal. A respiratory rate of 16 is ideal. The blood pressure of 130/62 mmHg shows a slightly widened pulse pressure but is not acutely concerning. The pulse oximetry of 95 percent is within the acceptable range for most adults. This client is stable and does not exhibit the acute respiratory distress seen in other potential candidates.
Choice C rationale
Client 3 is the priority because they are showing signs of respiratory distress and hypoxia. A respiratory rate of 28 breaths per minute is tachypneic (normal is 12 to 20), and an oxygen saturation of 90 percent is below the standard target of 95 to 100 percent. This indicates the client is struggling to maintain oxygenation and requires immediate assessment, potential oxygen therapy, and further diagnostic evaluation to prevent further respiratory failure or cellular hypoxia and related complications.
Choice D rationale
Client 4 demonstrates very stable vital signs. A temperature of 97.2 F, pulse of 70, and respiratory rate of 14 are normal. A blood pressure of 120/80 mmHg is the textbook definition of a normal reading. An oxygen saturation of 100 percent indicates perfect hemoglobin saturation. There is no clinical reason to see this client before Client 3, who is currently experiencing significant respiratory compromise and requires urgent nursing and possibly medical intervention.
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