Which statement made by the caregiver of a 2-year-old child who is scheduled to have a voiding cystourethrogram (VCUG) indicates a correct understanding of the procedure?

Choice A rationale:

Pedal edema is not indicative of digoxin toxicity. Digoxin toxicity primarily affects the heart's electrical activity and rhythm, not fluid accumulation in the extremities.

Choice B rationale:

Cardiac arrhythmias are a hallmark sign of digoxin toxicity. Digoxin can lead to various types of arrhythmias, such as atrial tachycardia, atrial fibrillation, and ventricular ectopy. This occurs due to the drug's effects on altering the electrical conduction in the heart.

Choice C rationale:

Circumoral cyanosis is not a typical sign of digoxin toxicity. This symptom might be seen in conditions like methemoglobinemia or respiratory distress, but it's not directly related to digoxin toxicity.

Choice D rationale:

Infrequent voiding is not a specific sign of digoxin toxicity. It could be related to various factors, such as fluid intake, renal function, or underlying medical conditions, but it's not a hallmark of digoxin toxicity.

Choice A rationale:

Administering pancreatic enzymes between meals may not provide the necessary digestive support when food is introduced to the gastrointestinal tract. These enzymes are meant to aid in digestion, so administering them between meals might not be as effective as when taken in conjunction with food.

Choice B rationale:

Administering pancreatic enzymes before meals is the most appropriate time because it helps replace the missing enzymes in patients with cystic fibrosis. These enzymes aid in breaking down food and absorbing nutrients, compensating for the deficient pancreatic function. By giving the enzymes before meals, the body has the necessary support to digest the incoming food.

Choice C rationale:

While administering enzymes during meals might seem logical, it's actually less effective. The enzymes need time to mix with the ingested food before it enters the small intestine, where digestion primarily occurs.

Choice D rationale:

Administering pancreatic enzymes after meals wouldn't be as effective because the enzymes need to be present when food enters the stomach and begins the digestive process.