A nurse is preparing to obtain a blood specimen from a preschooler. Which of the following actions should the nurse perform?

Rationale:

• Encourage the client to discuss their feelings: Encouraging emotional expression is a key therapeutic approach in managing bulimia nervosa. It allows the client to explore underlying psychological issues, such as anxiety and fear of weight gain, which often contribute to disordered eating behaviors.
• Provide a reduced sodium diet: Sodium restriction is not indicated in this client. In fact, the client has a slightly low sodium level (134 mEq/L), and further restriction could worsen electrolyte imbalances, which are already contributing to cardiac instability.
• Request a prescription for fluoxetine: Fluoxetine, an SSRI, is approved for the treatment of bulimia nervosa and can reduce the frequency of binge-purge episodes. It is also effective in treating coexisting anxiety or depressive symptoms, which are common in this population.
• Request a prescription for bupropion: Bupropion is contraindicated in clients with eating disorders due to its seizure risk. In clients with bulimia, frequent vomiting and low electrolytes increase this risk significantly, making bupropion an inappropriate choice.
• Monitor daily intake and output: Monitoring intake and output helps evaluate hydration status and kidney function, both of which may be compromised due to chronic purging. It also helps track nutritional rehabilitation and prevent complications from electrolyte shifts.

Rationale:

A. "Apply the ointment to the skin every 4 hr.": Nitroglycerin topical ointment is applied every 6 to 8 hours, depending on the provider's instructions. Applying it every 4 hours may increase the risk of side effects such as hypotension or tolerance due to excessive dosing frequency.

B. "Spread the ointment in a thin, even layer.": The medication should be applied in a thin, consistent layer to allow for proper absorption through the skin. The dose is usually measured and spread using applicator paper, avoiding rubbing or massaging it in.

C. "Apply the ointment to the forearm.": The preferred application sites are hairless areas of the chest, back, or upper arms. The forearm is not typically used due to variability in absorption and the presence of thinner skin and more movement.

D. "Massage the ointment into the skin.": Nitroglycerin ointment should never be massaged into the skin. Massaging can lead to unpredictable absorption rates and an increased risk of hypotension or headache due to rapid systemic absorption.