Which of the following statements about kidney transplantation rejection should the nurse include in patient education?

Choice A rationale

Intense physical activity in cold weather generally increases metabolic heat production and improves core temperature maintenance, which can actually be protective against frostbite as long as the person remains dry. While exhaustion can eventually lead to a drop in body temperature, the activity itself is not a direct risk factor compared to environmental exposure or poor circulation. Therefore, active movement is usually encouraged to maintain peripheral perfusion during brief periods of cold exposure to prevent freezing.

Choice B rationale

A high caloric intake before entering a cold environment provides the body with necessary fuel for thermogenesis and shivering, which helps maintain the core body temperature. Malnutrition or an empty stomach would be a risk factor because the body lacks the energy stores needed to generate heat effectively. Therefore, eating a hearty meal is a protective strategy rather than a risk factor for the development of cold-induced tissue injuries like frostbite or systemic hypothermia.

Choice C rationale

Inadequate clothing is a primary risk factor because it allows for rapid heat loss through conduction, convection, and radiation. Without proper insulation, the skin is directly exposed to freezing temperatures, leading to the formation of ice crystals in the extracellular fluid and subsequent cellular dehydration. Protecting the extremities with moisture-wicking layers and wind-resistant outer shells is essential to maintain a microclimate that prevents the skin temperature from dropping below the freezing point.

Choice D rationale

Conditions such as peripheral vascular disease, diabetes mellitus, or Raynaud's phenomenon significantly increase the risk of frostbite by impairing the body's ability to deliver warm blood to the extremities. When blood flow is compromised, the tissues cannot effectively counteract the cooling effects of the environment. Chronic vascular insufficiency reduces the thermal reserve of the skin, making the fingers, toes, and nose much more susceptible to freezing even during relatively short periods of cold exposure.

Choice E rationale

The duration of exposure to sub-zero temperatures is a critical determinant in the pathophysiology of frostbite. Prolonged exposure allows the cold to penetrate deeper into the tissues, causing progressive vasoconstriction and eventual vascular stasis. As the exposure time increases, the risk of irreversible tissue damage and necrosis rises because the compensatory mechanisms of the body are overwhelmed. Freezing of the skin and underlying structures occurs when the tissue temperature falls below 0 degrees Celsius.

Choice F rationale

Consuming alcohol causes peripheral vasodilation, which creates a false sense of warmth while actually accelerating the loss of core body heat to the environment. Furthermore, alcohol impairs cognitive judgment and physical coordination, potentially leading a person to remain in a cold environment longer than is safe or to lose protective clothing. This combination of physiological heat loss and behavioral impairment significantly predisposes an individual to severe cold injuries and systemic hypothermia in freezing conditions.

Choice A rationale

Administering chemotherapy involves the handling of highly toxic cytotoxic agents that require specialized certification and advanced clinical knowledge. Nursing assistants do not possess the legal scope of practice or the pharmacological training to manage these medications, even under direct supervision. Prioritizing this delegation would violate safety protocols and state nurse practice acts, as the risk of extravasation or systemic toxicity requires continuous assessment by a registered nurse.

Choice B rationale

Monitoring vital signs is a technical task that falls within the competency of a nursing student who has received proper instruction. The registered nurse remains responsible for interpreting these values, but delegating the collection of data allows for efficient workflow. Vital signs provide critical data on the hemodynamic stability of a cancer patient, and a qualified student can accurately perform this task once they have demonstrated clinical proficiency in a controlled environment.

Choice C rationale

Patient education regarding the complex side effects of radiation therapy is a core responsibility of the registered nurse that cannot be delegated to a licensed practical nurse. Radiation involves intricate physiological changes, such as skin integrity breakdown and internal tissue inflammation, requiring a high level of clinical judgment. While an LPN can reinforce teaching, the initial assessment of learning needs and the development of the educational plan must be performed by the professional nurse.

Choice D rationale

Performing clinical assessments is a non-delegable task that requires professional diagnostic reasoning and specialized medical knowledge. Family members can provide subjective information regarding a patient's comfort or history, but they lack the objective clinical training required to evaluate physical symptoms or disease progression. Assigning assessment tasks to unlicensed individuals who are not healthcare professionals compromises patient safety and leads to inaccurate data collection regarding the patient's oncological status.