Why is normal saline used for wound care to post-op patients instead of using povidone-iodine?

Why is normal saline used for wound care to post-op patients instead of using povidone-iodine?

Which is more suited as best practice to prevent infection?

Why is normal saline used for wound care to post-op patients instead of using povidone-iodine? Which is more suited as best practice to prevent infection?

You will be required to identify a nursing problem or issue that relates to the specialty area of practice in which you are completing your clinical placement for this unit. (done. refer to question above)

Once you have identified a nursing problem/issue you will need to develop this into a question for exploration which is subject to approval by your LIC/Tutor. This question needs to be realistic in the context of your speciality clinical placement in relation to nursing practice. This question will lead you to contemporary literature.(this is done already)