Choice A rationale:

Blood clots are not a concern with fractures.

Rationale: This response is incorrect.

Blood clots can be a concern with fractures, especially if the patient is immobilized or has other risk factors for clot formation.

Choice B rationale:

Fractures can increase the risk of blood clots, which can be dangerous.

Rationale: This is the correct response.

Fractures can indeed increase the risk of blood clots, as immobility and injury to blood vessels can promote clot formation.

It is crucial to address this risk and educate the patient about preventive measures.

Choice C rationale:

Blood clots are only a concern if you have a family history of clotting disorders.

Rationale: This response is not entirely accurate.

While a family history of clotting disorders can increase the risk of blood clots, it is not the only factor to consider.

Choice D rationale:

Blood clots are more common in open fractures, not closed ones.

Rationale: This response is misleading.

While open fractures may have a higher risk of infection, both open and closed fractures can potentially lead to blood clot formation due to immobility and damage to blood vessels.