A nurse is caring for a newborn who has macrosomia and whose mother has diabetes mellitus. The nurse should recognize which of the following newborn complications as the priority focus of care?

Choice A reason: Monitoring the newborn's blood pressure is not the most appropriate action, as it is not directly related to the signs of diaphoresis, jitteriness, and lethargy. These signs are more indicative of hypoglycemia, which is a low blood sugar level that can affect newborns, especially those who are premature, small for gestational age, or have diabetic mothers.

Choice B reason: Initiating phototherapy is not the most appropriate action, as it is used to treat hyperbilirubinemia, which is a high level of bilirubin in the blood that can cause jaundice, a yellowish discoloration of the skin and eyes. Hyperbilirubinemia does not cause diaphoresis, jitteriness, or lethargy.

Choice C reason: Obtaining blood glucose by heel stick is the most appropriate action, as it can confirm the diagnosis of hypoglycemia, which is the most likely cause of the signs of diaphoresis, jitteriness, and lethargy. The nurse should perform a heel stick using a sterile lancet and a glucose meter, and obtain a blood sample from the lateral aspect of the heel. The nurse should also provide warmth, stimulation, and feeding to the newborn, and report the blood glucose level to the provider.

Choice D reason: Placing the newborn in a radiant warmer is not the most appropriate action, as it can cause dehydration, fluid loss, and further hypoglycemia. The nurse should use a radiant warmer only if the newborn is hypothermic, which is a low body temperature that can also affect newborns. The nurse should monitor the newborn's temperature and skin color, and adjust the warmer accordingly.

Choice A reason: Nervousness is a common and expected side effect of terbutaline, which is a beta-2 adrenergic agonist that stimulates the sympathetic nervous system and relaxes the uterine smooth muscle. The nurse does not need to report this finding to the provider, but can provide reassurance and comfort to the client.

Choice B reason: Tremors are also a common and expected side effect of terbutaline, as it causes increased muscle activity and shakiness. The nurse does not need to report this finding to the provider, but can monitor the client's vital signs and electrolyte levels, and advise the client to avoid caffeine and other stimulants.

Choice C reason: Dyspnea is an uncommon and serious side effect of terbutaline, as it can indicate pulmonary edema, which is a life-threatening condition where fluid accumulates in the lungs and impairs gas exchange. The nurse should report this finding to the provider immediately and prepare for interventions, such as oxygen therapy, diuretics, or discontinuation of terbutaline.

Choice D reason: Headaches are also a common and expected side effect of terbutaline, as it causes vasodilation and increased blood flow to the brain. The nurse does not need to report this finding to the provider, but can administer analgesics as prescribed, and encourage the client to rest and hydrate.