Application Question 11
Due Feb 25 by 11:59pm Points 10 Submitting a text entry box Available until Mar 26 at 1pm
This assignment was locked Mar 26 at 1pm.
Look back over the responses from your classmates in the preceding discussion. If you are satisfied with your original response to this question, simply copy and paste that response here! If you see something in classmates' responses you wish to incorporate, add that information in before submitting.
Pretend you overhear a conversation about skeletal health while on the bus. A woman is saying, “You wouldn’t believe this new doctor I’m seeing! I had all my blood tests done and they all came back great, except for low on vitamin D. And what does the doctor do? She tells me I should get a bone checkup for osteoporosis! Now you know I eat lots of food with calcium in it, and get this, my calcium blood levels are normal! What kind of doctor thinks you can get osteoporosis when your calcium levels are perfectly fine? I’m not getting that silly bone checkup.”
What would you be thinking during this conversation? If you were this woman’s doctor, how would you explain the recommendation to get a bone density test?
Mostly Complete (10 pts): Discuss the main point, which is that the only reason she has normal blood calcium is that her body is taking calcium from her bones to keep blood levels normal. Delve into the cellular/chemical aspect of this situation, including a reference to the involvement of important cells/chemicals in this feedback loop (i.e., the PTH/calcium feedback loop/vitamin D).
According to the conversating the women stating that low level of vitamin D even though her blood calcium is normal her doctor want her to do checkup for osteoporosis . Vitamin D levels are tightly regulated by the body to maintain homeostasis. Vitamin D is essential for calcium absorption from the intestines. Low level of vitamin D resulting impaired calcium absorption. When blood calcium levels drop the parathyroid glands release PTH. PTH/calcium feedback loop and vitamin D work together to maintain calcium homeostasis in the body. When blood calcium drops, PTH stimulates osteoclasts (bone-resorbing cells) to break down bone tissue, releasing calcium into the bloodstream. Therefore, a bone density test need to be recommended to check the bone density because osteoporosis can occur due to factors beyond on blood calcium levels.
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