Compared with contraction stress test (CST), nonstress test (NST) for antepartum fetal assessment:

Choice A reason: Infection is not the greatest risk for a woman with marginal placenta previa, as it is not directly related to the condition. Marginal placenta previa is a type of placenta previa where the edge of the placenta is near the cervical os but does not cover it. It can cause painless bleeding during pregnancy or labor, but it does not increase the risk of infection.

Choice B reason: Hemorrhage is the greatest risk for a woman with marginal placenta previa, as it can occur due to the separation of the placenta from the uterine wall during labor or delivery. The bleeding can be profuse and life-threatening, and it requires prompt intervention and monitoring.

Choice C reason: Urinary retention is not the greatest risk for a woman with marginal placenta previa, as it is not directly related to the condition. Urinary retention is the inability to empty the bladder completely, and it can occur due to various factors such as anesthesia, trauma, or medication. It can cause discomfort, infection, or bladder distension, but it is not as serious as hemorrhage.

Choice D reason: Thrombophlebitis is not the greatest risk for a woman with marginal placenta previa, as it is not directly related to the condition. Thrombophlebitis is the inflammation of a vein due to a blood clot, and it can occur due to prolonged bed rest, dehydration, or injury. It can cause pain, swelling, or redness in the affected area, and it can lead to pulmonary embolism if the clot dislodges and travels to the lungs. However, it is not as common or as severe as hemorrhage.

Choice A reason: The order in which the information is presented is not the most important factor, as it does not affect the client's motivation or ability to learn. The order of the information should be logical and sequential, but it can vary depending on the client's needs, preferences, and learning style. The nurse should assess the client's prior knowledge and tailor the teaching accordingly.

Choice B reason: The extent to which the pregnancy was planned is not the most important factor, as it does not determine the client's interest or willingness to learn. The pregnancy may be planned or unplanned, but the client may still have questions, concerns, or goals related to the pregnancy. The nurse should respect the client's feelings and emotions and provide support and guidance.

Choice C reason: The client's readiness to learn is the most important factor, as it influences the client's engagement and retention of the information. The client's readiness to learn depends on the client's perception of the relevance, importance, and benefits of the information, as well as the client's physical, psychological, and social readiness. The nurse should assess the client's readiness to learn and use appropriate strategies to enhance it, such as setting realistic and specific objectives, providing positive feedback, and involving the client in the learning process.

Choice D reason: The client's educational background is not the most important factor, as it does not reflect the client's learning needs or capabilities. The client's educational background may vary, but the client may still have similar or different learning needs depending on the pregnancy situation. The nurse should not assume the client's level of understanding or knowledge based on the client's educational background, but rather use simple and clear language, avoid medical jargon, and check for comprehension.