Correct Answer: A

Rationale: Calf swelling is a common sign of thrombophlebitis, which is inflammation of a vein due to a blood clot. Prolonged immobility can predispose individuals to thrombophlebitis. Calf swelling occurs due to the obstruction of blood flow, causing localized edema. This condition can lead to serious complications like pulmonary embolism if not promptly addressed. Elevated blood pressure, decreased urine output, and a generalized rash are not typically associated with thrombophlebitis. Elevated blood pressure may be linked to other conditions like hypertension, decreased urine output to kidney dysfunction, and a generalized rash to allergic reactions or skin conditions. Therefore, in a client on bed rest, calf swelling should raise suspicion of thrombophlebitis and prompt further evaluation and intervention.

Correct Answer: A

Rationale: When caring for a client with a tracheostomy, the nurse should clean the skin around the stoma with normal saline to prevent infection and ensure cleanliness. This action helps in maintaining skin integrity and preventing skin breakdown. Securing the tracheostomy ties with two fingers' width underneath is essential to allow for proper fit, prevent skin irritation, and ensure the ties are not too tight. Soaking the outer cannula in warm tap water is not recommended as it can lead to contamination and is not a standard practice. Using a cotton tip applicator to clean the inside of the inner cannula is discouraged as it can leave fibers behind, increasing the risk of aspiration and respiratory complications.

Correct Answer: A

Rationale: An uneven shape of a lesion is a common characteristic of malignant skin lesions. Asymmetric or irregularly shaped lesions are concerning for skin cancer and should be reported promptly for further evaluation and management. Choice B, a uniformly colored lesion, is more indicative of a benign lesion as malignant lesions often exhibit variations in color. Choice C, a lesion that is small and flat, does not necessarily indicate malignancy by itself. Choice D, a lesion that is less than 1 cm in diameter, is more suggestive of a benign lesion, as malignant lesions are typically larger in size.

Correct Answer: D

Rationale: The correct answer is D. Whitish oval specks sticking to the hair shaft are nits, which are a definitive sign of pediculosis capitis (head lice). A: Scratching the head more than usual is a common symptom but not confirmatory of head lice infestation. B: Flakes evident on a student's shoulders may indicate dandruff or dry scalp, not necessarily head lice. C: Oval pattern occipital hair loss is not a typical manifestation of pediculosis capitis.

Correct Answer: A

Rationale: Assisting the client in preparing questions is the most appropriate action as it helps ensure that all concerns are addressed during the provider's visit. By helping the client write down questions, the nurse empowers the client to actively participate in their care and communicate effectively with the provider. Reassuring the client, while well-intentioned, may not address the specific questions or fears the client has. Explaining the procedure in detail may not be what the client is seeking at this moment, as their primary concern is about the provider's actions. Directing the client to search for information online is not recommended as it may lead to confusion or misinformation, and the information may not be tailored to the client's specific situation.