Normally, after Menopause women have increased the risk of developing 'Osteoporosis' Disease condition. According to the nurse what is the main cause of this condition?

1. A

   Fall in LH level

2. B

   Decrease level of oestrogen

3. C

   Increase level of oestrogen

4. D

   Decreased libido

Appeared in: PGIMER Chandigarh NO - 2015

Explanation

• the decrease in estrogen levels, which is the primary driver of bone loss after menopause.
• Estrogen inhibits osteoclastic activity (bone breakdown). When estrogen levels fall, this inhibition is lost, leading to accelerated bone resorption.
• The process is mediated by the RANK/RANKL/OPG pathway. Low estrogen increases RANKL and decreases OPG, which shifts the balance in favor of osteoclast activation and bone breakdown.
• This accelerated bone loss is most rapid in the first 5-10 years after menopause, increasing the risk of fragility fractures.

Why Other Options Were Wrong

• Option A: Luteinizing Hormone (LH) levels actually increase significantly after menopause due to the loss of negative feedback from the ovaries' estrogen production.
• Option C: An increase in estrogen levels is protective against osteoporosis. Hormone replacement therapy, which raises estrogen levels, is a treatment for preventing postmenopausal bone loss.
• Option D: Decreased libido is a common symptom of menopause, often related to hormonal changes and psychosocial factors, but it is not a physiological cause of osteoporosis.

Related Visual

Clinical Relevance

• Nursing practice connection: Safe nursing care depends on performing Pathophysiology of postmenopausal osteoporosis in the correct sequence, documenting the action clearly, and monitoring for the expected response.
• Nurses play a key role in educating postmenopausal women about osteoporosis risk. This includes counseling on lifestyle modifications such as adequate calcium (1200 mg/day) and vitamin D (800-1000 IU/day) intake, weight-bearing exercises, and smoking cessation.
• Fall prevention is a critical nursing intervention for patients with osteoporosis. This involves assessing the home environment for hazards and teaching strategies to improve balance and strength.
• Nurses should be prepared to discuss screening with DEXA scans and explain treatment options like bisphosphonates, SERMs, and hormone replacement therapy, ensuring the patient understands the benefits and risks.

How to Approach the Question

• First, identify the core concepts in the question: 'Menopause', 'Osteoporosis', and 'main cause'.
• Recall the primary hormonal change that defines menopause: the cessation of ovarian function and the subsequent dramatic fall in estrogen production.
• Consider the physiological role of estrogen. Remember its function in regulating the skeletal system, specifically its inhibitory effect on bone resorption.
• Evaluate each option against this physiological knowledge. 'Decrease level of oestrogen' directly aligns with the known pathophysiology.
• Eliminate the other options. 'Fall in LH' is factually incorrect (it rises). 'Increase level of oestrogen' is the opposite of what happens and would be protective. 'Decreased libido' is a symptom, not a cause of a skeletal disease.
• Confirming that the decline in estrogen is the direct cause of accelerated bone loss leads to the correct answer.

Concept Tested & Keywords

• Concept Tested: Pathophysiology of postmenopausal osteoporosis
• Stem keywords: Menopause, Osteoporosis, main cause
• Lead-in keywords: what is the main cause
• Clinical cues: Post-menopause women
• Negative lead-in flag: false

Question ID

Q7V_EpQN7Cfdcs77XjPnmt

Copy ID

Reference Book

E6 Gynecology Williams p. 71-94

E6 Physiology Guyton 4SAE Part 3 p. 43-45