A patient has a new order for magnetic resonance imaging (MRI) to evaluate possible left femur osteomyelitis after hip arthroplasty surgery. Which information indicates the nurse should consult with the health care provider before scheduling the MRI?

Correct Answer: A

Rationale: The correct answer is A because having a pacemaker can pose a significant risk during an MRI due to potential interference with the device's function. Pacemakers can malfunction or heat up during the MRI procedure, leading to serious complications. Consulting with the healthcare provider is crucial to determine if special precautions or alternative imaging methods are needed. Choices B, C, and D are incorrect because: B: Claustrophobia can be managed with medication or relaxation techniques, and open MRI machines are available for claustrophobic patients. C: Hearing aids are generally safe during an MRI, and can be removed before the procedure if necessary. D: Allergies to shellfish do not pose a direct risk during an MRI unless contrast dye containing shellfish is used, in which case alternative contrast agents can be used.

Correct Answer: A

Rationale: The correct answer is A: Assess for hip pain. This is because evaluating the patient's level of hip pain is a crucial indicator of the effectiveness of Buck's traction in managing the intracapsular fracture of the right femur. Decreased pain can suggest proper alignment and traction application. Checking peripheral pulses (B) is important for assessing circulation but not specific to evaluating traction. Assessing for contractures (C) is relevant for long-term care but not immediate effectiveness. Monitoring for hip dislocation (D) is important but not the primary indicator of traction effectiveness.

Correct Answer: C

Rationale: The correct answer is C: "I will be able to use my fingers with more flexibility to grasp things." This answer is correct because arthroplasty surgery aims to improve joint function and mobility rather than correcting deformities or changing the appearance of the fingers. Patients with ulnar drift caused by RA typically have limited mobility and flexibility in their fingers, so the goal of the surgery is to enhance the ability to use the fingers for daily tasks. Choice A is incorrect because while the surgery may improve finger function, it may not fully correct all deformities caused by RA. Choice B is incorrect because hand exercises are typically an important part of the post-operative rehabilitation process to regain strength and mobility. Choice D is incorrect because while the surgery may improve the alignment of the joints, it may not significantly change the size or shape of the fingers.

Correct Answer: C

Rationale: The correct action is to assess leg pulses and sensation first because it is crucial to determine if there is compromised blood flow or nerve damage. This assessment helps in identifying any immediate threats to the patient's limb and guides further interventions. Elevating the leg or applying compression bandage without ensuring adequate circulation could worsen the condition. Placing ice packs is not appropriate for a potentially compromised limb.

Correct Answer: D

Rationale: The correct answer is D because prolonged capillary refill indicates compromised blood flow, potentially leading to ischemia or compartment syndrome. It is crucial to communicate this immediately to prevent tissue damage. Swelling (A) and severe pain (B) are common in fractures and should be managed but may not indicate immediate danger. A deformed appearance (C) is expected in a Colles' fracture and usually does not require immediate intervention.