A nurse is caring for a client who develops a pulmonary embolism.
Which of the following interventions is the priority for the nurse to take?

Choice A rationale

Vitamin D is crucial for calcium absorption in the gut, which is essential for bone mineralization and strength. Osteoporosis is characterized by decreased bone mass, so a decrease in Vitamin D intake would exacerbate the condition by impairing calcium homeostasis and potentially leading to hypocalcemia and increased bone resorption.

Choice B rationale

Weight-bearing exercises, such as walking, stimulate osteoblast activity, promoting bone formation and increasing bone mineral density. A consistent regimen, such as walking five times a week, applies mechanical stress to the bone, which is a known physiological stimulus for bone remodeling and is effective in slowing bone loss associated with osteoporosis.

Choice C rationale

Corticosteroids (e.g., prednisone) are well-known to be a risk factor for osteoporosis. They increase bone resorption, decrease bone formation, and impair calcium absorption, leading to accelerated bone loss. Their use would be contraindicated for managing osteoporosis symptoms, as it worsens the underlying pathology.

Choice D rationale

Applying cool clothes or ice is primarily effective for acute inflammation or muscle strains. While potentially helpful for temporary joint pain, it does not address the underlying systemic pathology of osteoporosis, which is a reduction in bone density and structural integrity, not a primary inflammatory joint process. Management focuses on slowing bone loss and preventing fractures.

Choice A rationale

While constant elevation is beneficial for reducing swelling and promoting venous return in a new cast, a child not consistently keeping the arm elevated is a management challenge, not an immediate emergency sign of severe neurovascular compromise. The nurse should reinforce the instruction and assist the parent, but other signs indicate a more urgent situation requiring immediate intervention.

Choice B rationale

Capillary refill time is a critical assessment of peripheral perfusion and should normally be less than 3 seconds in a child. A refill time of 4 seconds suggests impaired arterial blood flow to the digits, potentially due to swelling and constriction within the rigid cast compartment, indicating an immediate risk of Compartment Syndrome which can cause irreversible tissue damage.

Choice C rationale

Swelling and bruising are expected findings following a fracture and the application of a cast. Bruising (ecchymosis) results from internal bleeding associated with the trauma, and some swelling (edema) is common. While excessive or rapidly increasing swelling must be monitored, this finding alone is less indicative of acute neurovascular compromise than a prolonged capillary refill.

Choice D rationale

Post-fracture and casting, a child will likely experience pain and apprehension, leading to reluctance to move the affected limb, a protective mechanism known as guarding. However, the ability to move the digits (wiggle fingers) should be assessed. Inability to move, if accompanied by severe pain and other neurovascular changes, could indicate nerve damage or severe compartment syndrome.