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Alisha Tuck: Navigating the First Trimester with Ultrasound and Anticoagulation Management

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Apr 14, 2026, 15:36

Alisha Tuck: Navigating the First Trimester with Ultrasound and Anticoagulation Management

Alisha Tuck, Obstetrics and Gynecology Sonographer at Sonopartners, LLC, shared a post on LinkedIn:

“Navigating the First Trimester: Ultrasound and Anticoagulation Management

The first trimester is a critical window for patients with known thrombophilias or clotting disorders.

For these individuals, the physiological changes of pregnancy – which naturally induce a hypercoagulable state – intersect with preexisting risks, necessitating a high-stakes balance of anticoagulation therapy.

As Sonographers, we are the ‘eyes’ of the clinical team, providing the diagnostic data that guides these delicate management decisions.

Scanning Considerations and Patient Care

Gentle Technique: If a subchorionic hemorrhage is present, use a gentle touch with the endovaginal transducer to minimize patient discomfort and avoid aggravating any active bleeding.
The ‘Double Check’ for Ectopic: Patients with clotting disorders may have undergone fertility treatments (IVF), increasing the risk of heterotopic or ectopic pregnancies. Always sweep the adnexa thoroughly, even if an intrauterine pregnancy (IUP) is confirmed.
Patient Communication: These patients are often highly anxious. While we cannot provide a diagnosis, maintaining a calm, professional demeanor and confirming that we are ‘taking all necessary measurements for the doctor to review’ can be incredibly grounding.

Summary Checklist for the Sonographer

Gestational Sac-Location, Shape, Mean Sac Diameter. Rule out ectopic; assess for ‘low implantation’
Yolk Sac- Presence and Diameter. Early indicator of pregnancy health
CRL -Best measurement of 3 Critical for future growth monitoring
Hematoma-Size (cm), Location, % of sac perimeter. Guides anticoagulant dosing adjustments
Adnexa- Ovaries, free fluid, or masses. Rule out hemorrhage or secondary complications

Conclusion

Sonographers play a pivotal role in the multidisciplinary care of the high-risk obstetric patient.

By providing meticulous documentation of the early pregnancy and any associated perigestational bleeding, we allow the clinical team to tailor anticoagulation therapy – optimizing the safety of both the mother and the developing embryo.”

Alisha Tuck: Navigating the First Trimester with Ultrasound and Anticoagulation Management