Forget the chalk.
So he ate some chalk, it isn't toxic, sure didn't cause the pleural effusion.
He's constipated, parents pRobably just overdid it. Or they didn't do it at all. Calcium carbonate's also what's in chalk.
He's constipated, parents pRobably just overdid it. Or they didn't do it at all. Calcium carbonate's also what's in chalk. [SEP] So he ate some chalk, it isn't toxic, sure didn't cause the pleural effusion. [SEP] Forget the chalk.