Review article: Investigations and the pregnant woman in the emergency department - part 2: Point-of-care ultrasound, electrocardiography, respiratory function tests and radiology

Molar pregnancy presenting in the emergency department

A 27-year-old female grava1 para 0 presented to the emergency department with complaints of intractable nausea and vomiting associated with fatigue and shortness of breath for the past 2 weeks with concerns for pregnancy. Physical exam was benign. Labs were significant for a β-hcg level of 348,260 mIU/mL. Ultrasonography showed a 12.4 pelvic mass possibly arriving from the anterior uterus concerning for fibroid. US also showed an anechoic focus suggestive of a gestational sac measuring 2.09 cm. The presentation was concerning for hyperemesis gravidarum due to molar pregnancy.

Physiological changes in pregnancy and their influence on the endocrine investigation

BACKGROUND

Physiological changes in pregnancy may result in significant alterations in endocrine hormone profiles, serum and urine electrolytes and endocrine gland morphology on imaging. Pregnancy-specific pathophysiological processes may also affect the results for endocrine tests. Investigation of endocrine disorders in pregnancy requires knowledge of these changes and awareness of the safety of dynamic hormone testing and imaging for the mother and foetus.

OBJECTIVE

This review seeks to outline the important physiological changes in pregnancy affecting reference intervals of basal and dynamic endocrine tests in pregnancy and the scenarios in which these changes are clinically significant, the pregnancy-specific disorders that may affect the investigation of endocrine disorders, and the safety of dynamic testing and imaging.

CONCLUSION

Awareness of the effect of physiological changes, and the potential impact of pregnancy-specific disorders of endocrine tests, and the safety of imaging is crucial to the management of endocrine disorders in pregnancy.