Which statement is false regarding breastfeeding women with chronic health problems?

The statement regarding breastfeeding women with chronic health problems that is identified as false is that the "pump and dump" method is effective. This method refers to the practice of expressing milk and discarding it to avoid transferring medications or substances to the infant through breast milk. However, for many medications, the concentration in breast milk is not high enough to pose a significant risk to the breastfeeding infant. In many cases, it is unnecessary to discard milk after taking medication, as the substances are often present in very low amounts that won't harm the infant.

The other statements reflect more accurate information: only a few medications are truly contraindicated for breastfeeding, and most medications can be safely used when nursing. Additionally, while some infants may be exposed to medications through breast milk, the amount is typically around 1% of the maternal dosage, which is usually considered to be quite safe. It's also noted that a relatively small percentage of breastfeeding mothers require daily medication, supporting the notion that most can manage their health conditions effectively while nursing without needing to resort to strategies like "pump and dump."