What is the first step when preparing to collect a sample from a "sun-tanning" baby?

When preparing to collect a sample from a "sun-tanning" baby, the first step should indeed be to assemble equipment before opening the isolette. This approach ensures that everything needed for the procedure is readily available, minimizing the time the isolette is open and potentially reducing the risk of temperature fluctuations or exposure to the environment for the baby.

By having all materials prepared, the healthcare professional can act efficiently and effectively when accessing the infant, which is particularly important in a neonatal setting where maintaining a stable environment is crucial for the baby's wellbeing. This practice also demonstrates good organization and planning, which are essential skills in medical settings, especially when dealing with vulnerable patients.

This choice does not involve any actions that could be inappropriate or counterproductive, such as turning off the isolette, which could negatively impact the baby's condition, or immediate gloving, which might not logically follow without first preparing the area. Additionally, while informing parents is essential for communication and transparency, it should come after preparing to conduct the procedure, as the readiness directly impacts the care provided.