The nurse is caring for a new mother and newborn in a rooming-in unit and watches the mother put the infant in the bed, lying on her side, propped up with a pillow. The nurse should point out that this position can increase the risk of which situation?

Clear the respiratory tract. This is because clearing the respiratory tract is the first step in the initial care of a newborn following vaginal delivery. The respiratory tract includes the nose, mouth, and lungs.

Clearing the respiratory tract helps the baby breathe more easily and prevents aspiration of amniotic fluid, blood, or mucus. The nurse can use a bulb syringe or a suction device to gently remove any fluid from the baby's nose and mouth.

Choice B is not correct because drying the infant off and covering the head is not the first action to take. Drying and covering the infant helps prevent heat loss and hypothermia, which are important for newborn care. However, this should be done after clearing the respiratory tract.

Choice C is not correct because stimulating the infant to cry is not the first action to take. Stimulating the infant to cry can help expand the lungs and improve oxygenation, which is also important for newborn care. However, this should be done after clearing the respiratory tract.

Choice D is not correct because clamping the umbilical cord is not the first action to take. Clamping and cutting the umbilical cord separates the baby from the placenta, which is no longer needed after birth. However, this should be done after clearing the respiratory tract.

Administer low concentrations of oxygen. Retinopathy of prematurity (ROP) is a disease of retinal vascular and capillary proliferation affecting premature infants undergoing oxygen therapy. Oxygen treatment results in pathologic growth of vessels in the developing retina that may lead to permanent damage to the retina as well as retinal detachment and macular folds. Administering low concentrations of oxygen can help prevent ROP by reducing the oxygen-induced vasoconstriction and vascular endothelial growth factor (VEGF) expression.

Choice A is not correct because keeping the infant's eyes covered at all times does not prevent ROP. In fact, it may increase the risk of infection or injury to the eyes.

Choice B is not correct because positioning with the head slightly lower than the body does not prevent ROP. It may increase the intracranial pressure and affect the cerebral blood flow.

Choice D is not correct because monitoring arterial oxygen levels with a pulse oximeter does not prevent ROP. It is a useful tool to guide oxygen therapy, but it does not directly affect retinal vascular development.