A nurse is admitting a client who has a history of atrial fibrillation. Which of the following conditions should the nurse recognize atrial fibrillation places the client at risk for?

Rationale:
A. Stagger care to avoid taking more than one specimen at a time: While staggering procedures can reduce cumulative stress, it is not a primary strategy for obtaining cooperation from a preschooler for a single blood draw.

B. Apply vapocoolant spray immediately prior to collecting the specimen: Vapocoolant sprays can help numb the skin, but their use in preschoolers requires caution, as sudden cold sensations may startle or frighten the child. Additional preparation and explanation are necessary for acceptance.

C. Ask the parents to leave the room prior to collecting the blood specimen: Preschoolers often feel more secure and cooperative when a parent is present. Removing the parent may increase anxiety and resistance to the procedure, so parental support is usually encouraged.

D. Demonstrate the use of the equipment for the child: Preschoolers benefit from simple, age-appropriate explanations and demonstrations of medical equipment. Showing how the equipment works helps reduce fear, build trust, and increase cooperation during the blood draw.

Rationale for Correct Choices

• Reye's syndrome: The toddler presents with acute onset of vomiting, lethargy, and altered mental status following a recent viral illness (influenza A). These are hallmark signs of Reye’s syndrome, a rare but serious condition causing hepatic and cerebral dysfunction in children.

• Aspirin administration: Use of aspirin during viral infections in children is strongly associated with the development of Reye’s syndrome. The guardians reported alternating aspirin with acetaminophen, directly increasing the toddler’s risk for this potentially life-threatening condition.

Rationale for Incorrect Choices

• Gastroenteritis: Gastroenteritis typically presents with diarrhea, abdominal cramping, and vomiting. While vomiting is present, the toddler also demonstrates lethargy and neurologic changes, which are not characteristic of routine gastroenteritis.

• Bronchitis: Bronchitis usually causes productive cough, wheezing, or respiratory distress. This toddler has a non-productive cough and clear lung sounds, making bronchitis an unlikely explanation for the current acute neurological and systemic symptoms.

• Oseltamivir administration: Oseltamivir is an antiviral used to treat influenza and is not associated with the development of Reye’s syndrome. The toddler’s severe symptoms are unrelated to this medication.

• Acetaminophen administration: Acetaminophen is generally safe in children at recommended doses. While it can cause liver toxicity in overdose, the scenario indicates appropriate use, making it an unlikely contributor to the toddler’s presentation.