Clinical Trials

Inclusion Criteria:

• Female in labor

• Singleton pregnancy >= 34 weeks

• Willing to participate

• Preferred language = English

• Epidural labor analgesia

• Empty stomach at time of initial baseline ultrasound assessment or upon re-assessment within 4 hours

Exclusion Criteria:

• Refusal to participate

• < 18 years of age

• Obstetrical contraindication to positioning

• Uncontrolled pain (non-functioning epidural)

• Multiple gestation

• Greater than or equal to 6 cm of cervical dilation at the time of enrollment

• Prior cesarean or vaginal delivery

• History of upper GI or gastric surgery

• History of recent meperidine or metoclopramide use

• History of diabetes (type 1, type 2, and gestational)

• History of gastroparesis

• Morbid Obesity cutoff of BMI > 50

• Lactose intolerance

• ASA Class III or greater

• Active nausea and vomiting in the peripartum period after epidural placement.

• Inability to consume the total volume of the assigned beverage within 15 minutes

• Inability to image stomach

• Chronic opioid consumption > 30mg morphine equivalents per day prior to labor

Note: Other protocol defined Inclusion/Exclusion Criteria may apply.

Eligibility last updated 04/15/2026. Questions regarding updates should be directed to the study team contact.