Which of the following should be done for high-risk preeclampsia patients in the first trimester?

For high-risk preeclampsia patients in the first trimester, the initiation of daily aspirin is a crucial preventive measure. Research has shown that women at high risk for developing preeclampsia can significantly benefit from low-dose aspirin, as it reduces the likelihood of the condition developing later in pregnancy. This is particularly important for individuals with risk factors such as a history of preeclampsia, chronic hypertension, or certain medical conditions.

While nutrition consults regarding salt intake may be relevant, they do not address the immediate prevention of preeclampsia. Baseline preeclamptic labs and ultrasounds for dating are also not direct interventions aimed at preventing the condition but rather serve more diagnostic or monitoring purposes. Therefore, the best action to take in the first trimester for those identified at high risk is to initiate daily low-dose aspirin therapy.