A nurse is reinforcing teaching with a group of clients about common findings that can indicate cancer.
The nurse should instruct the clients to monitor for and report which of the following findings? (Select all that apply.)

Choice A rationale

Hyperkalemia, an elevated serum potassium level (normal range 3.5-5.0 mEq/L), is characterized by symptoms such as muscle weakness, fatigue, and cardiac arrhythmias, not typically tingling sensations in the extremities. This symptom constellation is distinct from neurological manifestations.

Choice B rationale

Hypocalcemia, a decreased serum calcium level (normal range 8.5-10.5 mg/dL), can cause neuromuscular irritability leading to symptoms like muscle spasms, tetany, and perioral numbness. While it can cause sensory disturbances, the generalized tingling in hands and feet is more indicative of peripheral nerve damage.

Choice C rationale

Chemotherapy-induced peripheral neuropathy (CIPN) is a common side effect of various chemotherapeutic agents. It results from damage to peripheral nerves, leading to sensory symptoms like tingling (paresthesias), numbness, pain, and motor weakness, predominantly in a stocking-glove distribution.

Choice D rationale

While diabetes can cause peripheral neuropathy due to chronic hyperglycemia damaging nerves, it is not a direct consequence of chemotherapy. The question specifically attributes the symptom to chemotherapy, making CIPN the most direct and likely cause in this context.

Choice A rationale

Decreasing fluid intake can lead to dehydration, which exacerbates fatigue by impairing cellular metabolic processes and reducing blood volume, thus decreasing oxygen and nutrient delivery to tissues. Optimal hydration is crucial for maintaining cellular function, electrolyte balance, and overall energy levels, as it supports efficient metabolic waste removal and nutrient transport, thereby mitigating fatigue associated with radiation therapy. Normal fluid intake for an adult is typically 2.5-3.5 liters per day.

Choice B rationale

Planning 4-5 hours of daytime rest can disrupt normal nocturnal sleep patterns, leading to fragmented sleep and an exacerbation of fatigue. Excessive daytime napping can alter the circadian rhythm, making it difficult to achieve restorative sleep at night, which is essential for cellular repair, hormone regulation, and energy restoration. Short, strategic naps of 20-30 minutes are generally more beneficial to alleviate fatigue without interfering with nighttime sleep.

Choice C rationale

Avoiding between-meal snacks can lead to prolonged periods without caloric intake, resulting in hypoglycemia and depleted energy reserves, which significantly contribute to fatigue. Regular, small, nutrient-dense snacks help maintain stable blood glucose levels, providing a continuous supply of energy for metabolic processes and preventing the energy troughs that intensify fatigue. Adequate nutrition is vital for cellular energy production during radiation therapy.

Choice D rationale

Prioritizing activities from important to least important allows the client to conserve energy for essential tasks, preventing overexertion and managing fatigue effectively. This strategy, known as energy conservation, involves pacing activities, delegating non-essential tasks, and incorporating rest periods, thereby optimizing energy utilization and minimizing the physiological and psychological burden of fatigue commonly experienced during radiation therapy.