A nurse is teaching a group of parents about car seat safety. Which of the following statements should the nurse include in the teaching?

A. Keep all four of the side rails raised on the client's bed: Raising all four side rails can increase the risk of injury if the client attempts to climb over them. Full side rails are not a recommended fall-prevention strategy for clients with orthostatic hypotension.

B. Check the client every 4 hr to evaluate their need to use the restroom: Checking every 4 hours may not be frequent enough to prevent falls related to sudden episodes of dizziness or urgency. More proactive measures, such as assisting with ambulation, are safer for clients at risk.

C. Instruct the client to stand in place when beginning ambulation: Having the client stand in place for a few moments allows blood pressure to stabilize before walking, reducing the risk of dizziness and falls caused by orthostatic hypotension. This is a key intervention for fall prevention in at-risk clients.

D. Maintain the client's bed at the nurse's waist level: The bed height should be adjusted to facilitate safe transfers, typically at the level that allows feet to touch the floor and promotes stability. Keeping the bed at the nurse's waist level does not specifically prevent falls due to orthostatic hypotension.

A. Severe abdominal pain: Severe abdominal pain is more commonly associated with placental abruption, not placenta previa. In placenta previa, the placenta covers the cervical opening, which typically causes painless bleeding rather than significant abdominal discomfort.

B. Delayed menses: Delayed menses is not related to placenta previa. This condition occurs during pregnancy, after menses have already ceased, and does not influence menstrual timing.

C. Nausea: Nausea is a common symptom in early pregnancy due to hormonal changes but is not a characteristic finding of placenta previa. It does not help in diagnosing or identifying this placental complication.

D. Spotting: Spotting or painless vaginal bleeding, especially in the second or third trimester, is a hallmark sign of placenta previa. The bleeding occurs because the placenta partially or completely covers the cervical os, and it often requires careful monitoring and management to prevent maternal and fetal complications.