What is the preferred method to assess circulation in infants?

The preferred method to assess circulation in infants is by checking the brachial pulse. This choice is correct because the brachial pulse is readily accessible in infants and is located in an area where it can be easily palpated. Since infants have smaller and more delicate circulatory systems, assessing the brachial pulse provides an effective way to evaluate their circulation.

Additionally, this method is particularly useful because the radial pulse may not be reliably palpable in infants due to their smaller size and potential underdevelopment of the radial artery. The femoral pulse, while also an option, is less practical for routine assessments compared to the brachial pulse, which is more convenient and effective in monitoring circulation in this age group. Inspecting skin color can provide some information about circulation but does not substitute for direct assessment of pulse, which offers a more definitive indication of cardiovascular status.