Which of the following is associated with sickle cell disease?

The channel between the main pulmonary artery and the aorta in the fetus is the _______________ _______________

Fill in the blank(s) with correct word

When physically preparing yourself to work safely as a paramedic, you should:

A) exercise your cardiovascular system at least three times a week. B) read as much as you can about physical fitness. C) perform as many traditional sit-ups as you can to promote abdominal strength. D) do as little as possible to preserve your strength for emergency duty.