Which maternal condition should be considered a contraindication for the application of internal monitoring devices?
Correct Answer: A
Rationale: The correct answer is A: Unruptured membranes. Internal monitoring devices are inserted through the cervix and into the uterus, which can introduce bacteria and increase the risk of infection if the membranes are not ruptured. This can lead to serious complications for both the mother and the baby.
Choice B (intravenous fluid) is incorrect because IV fluids are commonly used during labor to maintain hydration and provide necessary nutrients.
Choice C (Fetus has known heart defect) is incorrect because internal monitoring devices are used to assess fetal heart rate and detect any abnormalities, making this condition a reason for monitoring rather than a contraindication.
Choice D (must act quickly to improve placental blood flow and fetal oxygen supply) is incorrect because internal monitoring devices are usually used for continuous monitoring and do not require immediate intervention to be placed.