A nurse is caring for a school-age child who is taking valproic acid. The nurse should expect the provider to order which of the following diagnostic tests?

Droplet.

The rationale for each choice is as follows:

• A. Droplet: Correct. Pneumonia is transmitted by respiratory droplets that are generated by coughing, sneezing, or talking. The nurse should wear a surgical mask and eye protection when caring for the client and maintain a distance of at least 3 feet from the client.
• B. Airborne: Incorrect. Airborne precautions are used for diseases that are transmitted by small particles that remain suspended in the air for long periods of time, such as tuberculosis, measles, or chickenpox. The nurse should wear a respirator and place the client in a negative-pressure room.
• C. Contact: Incorrect. Contact precautions are used for diseases that are transmitted by direct or indirect contact with the client or the client's environment, such as Clostridium difficile, scabies, or MRSA. The nurse should wear gloves and a gown and use dedicated equipment for the client.
• D. Protective environment: Incorrect. Protective environment precautions are used for clients who are immunocompromised and at risk of infection from others, such as clients who have had a stem cell transplant or are receiving chemotherapy. The nurse should wear a mask, gloves, and a gown and place the client in a positive-pressure room with HEPA filtration.

Electrolyte imbalance in pregnant clients is often associated with conditions that lead to dehydration and nutritional deficiencies. In this scenario, the key indicators are persistent nausea and significant weight loss.

• Persistent nausea can lead to reduced food and fluid intake. This condition, especially if prolonged, can cause dehydration and electrolyte imbalances due to the loss of essential minerals and nutrients that are not being replenished due to inadequate dietary intake.
• Significant weight loss, particularly the amount described in the scenario (6.8 kg or 15 lb), is a clear sign of inadequate nutritional intake and can further exacerbate the risk of electrolyte imbalance. It indicates that the body is not receiving enough nutrients, which is crucial for maintaining electrolyte balance.

The other options, while related to diet and fluid intake, are more specific to the client's eating habits and do not directly point to the primary cause of potential electrolyte imbalance in the context of this scenario. Therefore, the most comprehensive and medically relevant choice is (A) Persistent nausea and significant weight loss.