Which of the following is the most common substance found on analysis of a renal stone?

A. The longer the joint is displaced, the more difficult it is to get it back in place:
This statement is correct. Prompt reduction of a dislocated joint is important because the longer the joint remains out of place, the more difficult it becomes to realign it. Delayed reduction can lead to complications and makes the process more challenging for healthcare providers.

B. Avascular necrosis may develop at the site if it is not promptly resolved:
Avascular necrosis is a condition where bone tissue dies due to a lack of blood supply. While it is a potential complication of hip dislocation, it is not the immediate rationale for considering hip dislocation a medical emergency. The urgency primarily lies in the difficulty of reducing the dislocation and preventing further complications.

C. The client's pain will increase until the joint is realigned:
This statement is partially correct. While it is true that dislocated joints are extremely painful, the urgency in reducing the dislocation is not solely based on pain management. It is essential to prevent complications, restore joint function, and minimize long-term damage to the affected area.

D. Dislocation can become permanent if the process of bone remodeling begins:
This statement is accurate. If a dislocated joint is not promptly reduced, the surrounding tissues may undergo changes, and the process of bone remodeling can begin. This can lead to the dislocation becoming more difficult or even impossible to reduce, resulting in a permanent dislocation. Early intervention is essential to prevent this outcome.

A. Malignant hypothermia: This is a rare but life-threatening reaction to certain medications used during anesthesia. It doesn't typically manifest with calf edema.

B. Pulmonary embolism: While pulmonary embolism can occur as a complication in some cases, it is characterized by symptoms like sudden shortness of breath, chest pain, and may not directly cause calf edema.

C. Acute compartment syndrome
Increasing edema in the calf of a client with multiple fractures of the leg is a manifestation of acute compartment syndrome. Acute compartment syndrome occurs when there is increased pressure within a muscle compartment, which can lead to reduced blood flow, nerve damage, and tissue hypoxia. The edema and increased pressure can compress blood vessels, nerves, and muscle tissue within the compartment, resulting in symptoms such as severe pain, edema, and potential vascular compromise.

D. Fat embolism syndrome: This syndrome can occur in clients with long bone fractures, but it is characterized by respiratory and neurologic symptoms, not isolated calf edema.