After 1 week of hospitalization, Mr. Gray develops hypokalemia. Which of the following is the most significant symptom of his disorder?

Correct Answer: C

Rationale: Muscle weakness is a hallmark symptom of hypokalemia. Hypokalemia refers to low levels of potassium in the blood, which can affect muscle function. The decreased potassium levels can lead to muscle weakness, cramping, and even paralysis. These symptoms can impact various muscle groups in the body, making muscle weakness the most significant symptom to monitor and address in patients with hypokalemia.

Correct Answer: D

Rationale: The correct answer is D because side rails primarily function as a cognitive and physical reminder to patients, discouraging them from attempting to get out of bed without assistance. Research indicates that while side rails do not entirely prevent falls, they serve as a psychological barrier, prompting patients to reconsider their movements, especially those with impaired judgment or mobility issues. This aligns with the finding that 40% of patients still fall despite side rails, suggesting that while not foolproof, the rails reduce the likelihood of falls by acting as a deterrent rather than an absolute physical barrier. Choice A ("Side rails are ineffective") is incorrect because the data does not support a blanket conclusion that side rails have no utility. While 40% of patients may still fall, the remaining 60% may benefit from the rails' presence, indicating partial effectiveness. Side rails can mitigate risk even if they do not eliminate it entirely, and their effectiveness depends on patient-specific factors such as cognitive awareness and physical condition. Choice B ("Side rails should not be used") is incorrect because it disregards the potential benefits side rails offer in preventing falls for many patients. Eliminating side rails entirely could increase fall rates, particularly among high-risk individuals. Clinical guidelines often recommend side rails as part of a broader fall-prevention strategy, acknowledging that they are one of several tools to enhance patient safety, even if they are not universally effective. Choice C ("Side rails are a deterrent that prevents a patient from falling out of bed") is incorrect because it overstates their function. While side rails may deter some falls, the 40% fall rate demonstrates they do not fully prevent them. This choice implies an absolute guarantee of safety, which is not supported by evidence. Side rails are not fail-safe; patients may still climb over them, become entrapped, or experience falls due to other factors like confusion or muscle weakness. The key distinction lies in understanding that side rails are not a standalone solution but part of a multifaceted approach to fall prevention. Answer D correctly frames their role as a reminder, acknowledging their limitations while recognizing their value in patient care. The other choices either exaggerate their ineffectiveness (A and B) or their effectiveness (C), failing to capture the nuanced reality of fall prevention strategies.

Correct Answer: C

Rationale: Patients with impaired awareness may exhibit symptoms such as being semiconscious, overfatigued, disoriented, confused, or demonstrating symptoms of drug or alcohol withdrawal. A patient who cannot care for themselves at home does not necessarily indicate impaired awareness, as this could be due to physical limitations or lack of support, rather than a cognitive deficit.

Correct Answer: D

Rationale: Hip fracture is the most common injury among elderly persons. As people age, their bones become more fragile, making them more susceptible to hip fractures, often resulting from falls. These fractures can significantly impact an elderly person's quality of life and mobility, making them a significant concern in geriatric care.

Correct Answer: A

Rationale: Depression is the most common psychogenic disorder among elderly individuals. It can manifest as persistent feelings of sadness, hopelessness, and loss of interest in activities that were once enjoyed. Elderly individuals may also experience changes in appetite, sleep disturbances, and difficulty concentrating. Detecting and addressing depression in the elderly is crucial for their overall well-being and quality of life.