In pregnant women using methadone, what should be monitored monthly?

In pregnant women who are using methadone for opioid dependency, monitoring TSH (Thyroid-Stimulating Hormone) levels monthly is crucial. Methadone can interact with thyroid function by potentially lowering the levels of circulating thyroid hormones. Pregnancy itself also changes hormone levels and can affect thyroid function due to increased demand and alterations in metabolism.

Regular monitoring of TSH is vital to ensure that any hypothyroid or hyperthyroid conditions are identified and managed promptly. Maintaining appropriate thyroid function is particularly important during pregnancy for the health of both the mother and the developing fetus, as thyroid hormones are essential for fetal brain development and overall growth.

The other options, while important in certain contexts, are not specifically highlighted for monthly monitoring in the course of managing pregnant women on methadone. Blood glucose levels are typically monitored in patients with diabetes or at risk for gestational diabetes. Calcium levels may be monitored in specific contexts related to metabolic bone health or dietary insufficiencies, and liver function tests can be important in evaluating overall health and drug metabolism but are not routinely monitored on a monthly basis for all patients on methadone. Thus, TSH monitoring stands out as essential for this population.