A 67-year-old woman is admitted to the hospital with a fractured hip. Her past m

Question

A 67-year-old woman is admitted to the hospital with a fractured hip. Her past medical history was positive for osteoporosis. She was currently taking 1000 mg of calcium per day. A student nurse is providing morning care for the patient, and her instructor is questioning her about normal bone formation.

1. What are the two types of bones that would be found in the femur?

2. How will the osteoblasts and osteoclasts be involved in the healing phase of the femur fracture?

3. The patient has a past history of osteoporosis. Describe what role calcitonin and the parathyroid hormone plays in normal bone formation and breakdown.

Explanation / Answer

Ans 1: Femur is a single bone itself. Please specify what you want to ask in this.

Ans 2: There are four stages of repair of a broken bone

a. Hematoma formation at the site of fractture

b. Followed by fibrocRTILAGIOUS CALLUS

C. FORMATION OF BONY CALLUS

D. Last step is remodeling and addition of compact bone.

The osteoclast helps in bone replacement by breaking down the bone and the osteoblasts helps in making new bone.

3. Calcitonin functions to inhibits bone breakdown and may protect against excessively high levels of calcium in the blood.

Parathyroid thyroid hormones mantains the level of calcium and stimulates both resorption and formation of bones.

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