A nurse is talking with a client who is at 21 weeks of gestation and is scheduled for an international flight. Which of the following instructions should the nurse include? (Select all that apply.)

D Take frequent walks and do leg exercises during the flight to promote circulation. C Avoid using seat belts during the flight to prevent pressure on the abdomen. A Avoid sitting for long periods of time during the flight to prevent swelling and discomfort. E Avoid using electronic devices during the flight to reduce radiation exposure. Take a high dose of vitamin C before the flight to boost the immune system. B Wear compression stockings during the flight to prevent blood clots.