Which of the following is a guideline for cast care?

Correct Answer: B

Rationale: The correct answer is B because padding the edge of the cast helps reduce sharp edges, preventing skin irritation and potential injury. It ensures the patient's comfort and safety. Choice A is incorrect as scratching inside the cast can cause skin damage and infection. Choice C is incorrect as keeping the cast damp or wet can lead to skin breakdown and infection. Choice D is incorrect as keeping the extremity low close to the ground can increase swelling and discomfort.

Correct Answer: B

Rationale: The correct answer is B: Return fluid to the circulatory system. The lymphatic system collects excess fluid from tissues and returns it to the bloodstream to maintain fluid balance. It helps prevent edema and supports immune function by transporting white blood cells. A, C, and D are incorrect because: A: Providing reflex centers for respiration is a function of the nervous system, not the immune or lymphatic systems. C: Protecting internal organs is primarily the function of the skeletal system and organs themselves, not the immune or lymphatic systems. D: Absorbing nutrients is mainly the role of the digestive system, not the immune or lymphatic systems.

Correct Answer: B

Rationale: The correct answer is B, Central venous line. This type of intravenous line is inserted into a large vein in the body, typically in the neck, chest, or groin area. It is used for administering medications, fluids, blood products, and for monitoring central venous pressure. Peripheral line (A) is inserted into a smaller vein in the periphery, not a large vein. Gastrostomy line (C) is used for feeding directly into the stomach. Nasogastric line (D) is inserted through the nose into the stomach for feeding or drainage.

Correct Answer: C

Rationale: The correct answer is C: Never. Leaving a blank on a job application is generally not recommended as it may give the impression of being careless or unprepared. Providing as much information as possible is crucial for potential employers to assess your qualifications thoroughly. Leaving blanks can also result in your application being disqualified. Therefore, it is best to strive to complete all sections of a job application to the best of your ability. Choices A, B, and D are incorrect because in each of those scenarios, applicants should make an effort to provide alternative information or explanations instead of leaving the fields blank.

Correct Answer: B

Rationale: The correct answer is B: Establish a patient's baseline of normal function. Before surgery, it is crucial to assess the patient's baseline health status to identify any deviations from normal functioning that could affect the surgical outcome. This assessment helps in detecting any potential risks or complications during the surgical procedure. Options A, C, and D are not the priority because planning for care after the procedure, educating the patient and family, and gathering appropriate equipment are important but secondary to ensuring the patient's baseline health status is well understood before surgery.