The nurse provides skin care instructions to the client who is receiving external radiation therapy.
Which statement by the client indicates the client has effectively understood the patient teaching?

Choice A rationale

Unilateral calf tenderness is a common symptom of deep vein thrombosis (DVT), a condition involving blood clot formation, often in the leg. While serious, DVT is not a direct common finding indicating cancer, though certain cancers can increase DVT risk due to hypercoagulability. It warrants investigation but is not a primary cancer sign. Normal D-dimer levels are typically less than 0.5 mcg/mL.

Choice B rationale

A nagging cough, especially one that persists for an extended period or changes in character, can be a significant indicator of lung cancer or other respiratory malignancies. Chronic irritation of the airways by a tumor can lead to such a cough, differentiating it from an acute infection. This symptom warrants prompt medical evaluation.

Choice C rationale

A non-healing sore, particularly one that bleeds, changes in appearance, or fails to respond to conventional wound care, is a classic warning sign of skin cancer, such as basal cell carcinoma or squamous cell carcinoma. Cellular proliferation and impaired wound healing mechanisms are often at play in malignant lesions.

Choice D rationale

Unintended weight gain is generally not a common finding that indicates cancer. In fact, unexplained or unintended weight loss is a more frequent paraneoplastic syndrome associated with various malignancies, often due to increased metabolic demands of tumor growth and cachexia.

Choice E rationale

A persistent change in bowel pattern, such as new-onset constipation, diarrhea, or a change in stool caliber, can be a significant symptom of colorectal cancer. Tumors in the bowel can disrupt normal peristalsis and alter absorption, necessitating investigation to rule out malignancy.

Choice A rationale

A persistent cough or hoarseness can indicate irritation or inflammation of the respiratory tract and vocal cords. In the context of cancer, particularly lung or laryngeal cancer, these symptoms may signify abnormal cell growth affecting these areas, leading to chronic irritation. Early detection relies on recognizing such persistent changes.

Choice B rationale

Gallbladder disease, such as cholecystitis or gallstones, primarily involves inflammation or calculi within the gallbladder. While it causes gastrointestinal symptoms like pain and indigestion, it is not recognized as one of the seven universally accepted warning signs for cancer. Its pathology is distinct from oncological processes.

Choice C rationale

Hematopoietic changes refer to alterations in blood cell production, potentially indicating conditions like leukemia or lymphoma. While these are significant signs of hematologic malignancies, the general "seven warning signals" typically focus on more outwardly manifest or commonly observed symptoms rather than specific hematologic lab abnormalities.

Choice D rationale

A non-healing sore suggests impaired tissue repair and uncontrolled cell proliferation, which are hallmarks of malignancy. Normal wound healing involves a coordinated cellular response, including inflammation, proliferation, and remodeling. A chronic, unhealing sore can indicate the presence of abnormal cells disrupting this process.