Which condition is characterized by weakened and porous bones, increasing the risk of fractures?

A comminuted fracture occurs when the bone is crushed and shattered into multiple fragments, resulting in significant bone displacement and increased difficulty in alignment during the healing process.

a. Greenstick fracture: A greenstick fracture is an incomplete fracture where the bone bends and partially breaks, commonly seen in pediatric patients. It does not involve bone crushing or fragmentation.
c. Avulsion fracture: An avulsion fracture occurs when a small fragment of bone is pulled away from the main bone due to the forceful attachment of a tendon or ligament. It is not characterized by bone crushing or fragmentation.
d. Stress fracture: A stress fracture is a tiny crack in the bone caused by repetitive stress and overuse. It does not involve bone crushing or fragmentation.

The nurse should instruct the patient to avoid placing any objects under the cast to prevent skin irritation, damage to the cast, and potential introduction of bacteria or contaminants.

a. Encouraging the patient to frequently remove the cast for skin care is not recommended, as it can compromise the cast's fit and function and increase the risk of complications.
b. Advising the patient to use a hairdryer on the cast to relieve itching is not recommended, as it can cause skin maceration and damage the cast.
d. Educating the patient to keep the cast exposed to air for prolonged periods is not recommended, as dirt and debris can get trapped inside the cast, increasing the risk of infection. The patient should follow the healthcare provider's instructions for cast care.