To prevent possible retinopathy in a preterm infant requiring oxygen therapy, the nurse will:

Keep the infant's eyes covered at all times.

Position with the head slightly lower than the body.

Administer low concentrations of oxygen.

Monitor arterial oxygen levels with a pulse oximeter.

Answer and Explanation

The Correct Answer is C

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.

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Correct Answer is C

Explanation

Encourage the newborn to breastfeed every 2 hr. This is because breastfeeding helps the newborn to excrete bilirubin through stool and urine. Breastfeeding also prevents dehydration, which can worsen jaundice. The nurse should also monitor the newborn’s weight, hydration status, and bilirubin levels during phototherapy.

Choice A is wrong because monitoring the newborn’s blood glucose level hourly is not necessary for phototherapy.

Choice B is wrong because applying lotion to the newborn’s skin twice per day can interfere with the effectiveness of phototherapy and increase the risk of skin irritation.

Choice D is wrong because maintaining the newborn in a prone position can increase the risk of sudden infant death syndrome (SIDS) and limit the exposure of skin to light.

A. Hematocrit of 60% in an infant who is 8-hr old. B. Jaundice in an infant who is 4-hr old. C. Blood glucose fingerstick of 40 mg/dL for an infant who is 1-hr old. D. Acrocyanosis in an infant who is 2-hr old.

Correct Answer is B

Explanation

Jaundice in an infant who is 4-hr old. This is because jaundice is a yellow discoloration of the skin and eyes caused by high levels of bilirubin in the blood. Jaundice usually appears between the second and fourth day after birth and lasts for one to two weeks. Jaundice that appears within the first 24 hours of life is considered early-onset jaundice and may indicate a serious problem, such as an infection, a blood type mismatch, or a liver disorder. The nurse should notify the charge nurse of this finding and request a blood test to check the bilirubin level.

Choice A is wrong because a hematocrit of 60% in an infant who is 8-hr old is not abnormal. Hematocrit is the percentage of red blood cells in the blood. Newborns normally have higher hematocrit levels than older children and adults because they have more red blood cells at birth.

Choice C is wrong because a blood glucose fingerstick of 40 mg/dL for an infant who is 1-hr old is not abnormal.

Blood glucose is the amount of sugar in the blood. Newborns normally have lower blood glucose levels than older children and adults because they have less glycogen (stored sugar) at birth.

Choice D is wrong because acrocyanosis in an infant who is 2-hr old is not abnormal. Acrocyanosis is a bluish discoloration of the hands and feet caused by poor circulation. Newborns normally have acrocyanosis for the first few days of life because they are adjusting to the temperature outside the womb.

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To prevent possible retinopathy in a preterm infant requiring oxygen therapy, the nurse will:

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is updating the plan of care for a newborn who is undergoing phototherapy. Which of the following actions should the nurse include in the plan?

Correct Answer is C

Explanation

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Correct Answer is B

Explanation

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