A nurse is caring for a child who is postoperative following surgical correction of Tetralogy of Fallot. Which of the following findings should the nurse identify as an indication of heart failure?

Choice A reason: Assessing vital signs every 4 hours is important, but it is not specific to the care of an infant post-cardiac catheterization. Vital signs should be monitored according to the infant's condition and hospital policy.

Choice B reason: Monitoring the color of the affected extremity is crucial after cardiac catheterization to ensure there is no compromise in blood flow, which could indicate a vascular injury or thrombosis at the catheterization site.

Choice C reason: Maintaining NPO (nothing by mouth) status for 8 hours may be necessary before the procedure, but post-catheterization care typically includes gradual reintroduction of fluids and then food as tolerated.

Choice D reason: Keeping the affected extremity flexed is not recommended post-cardiac catheterization. The limb should be kept straight to avoid bending at the catheterization site, which could lead to bleeding or clot formation.

Choice A reason: While exposure to secondhand smoke is unhealthy and should be avoided, it is not commonly listed as a trigger for seizures. The primary concern with secondhand smoke is its impact on respiratory health.

Choice Breason: A prolonged headache can be a symptom of various conditions, but it is not generally considered a direct trigger for seizures. However, if a headache is related to a neurological condition, it may be associated with an increased risk of seizures.

Choice Creason: Decreased temperature, or being cold, is not typically a trigger for seizures. Seizure triggers are usually related to changes in the body's internal environment or external stimuli that affect the nervous system.

Choice D reason: Inadequate sleep is a well-known trigger for seizures. Sleep deprivation can lead to increased seizure activity in individuals with seizure disorders. Ensuring adequate and regular sleep is an important part of managing seizure disorders.