Final answer:
A nurse would monitor for atypical signs of infection in the elderly patient with urinary incontinence, the patient with a renal transplant, and the patient who received radiation therapy for lung cancer.
Explanation:
Atypical signs of infection that a nurse might monitor for include symptoms that are not commonly associated with typical infections. In the given options, the nurse would monitor the 78-year-old patient with urinary incontinence, the 35-year-old patient who underwent a renal transplant, and the 55-year-old patient who received radiation therapy for lung cancer, as these patients may exhibit unique or unusual signs of infection due to their underlying health conditions or medical histories.
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