Mummy, untuk check dulu kat rumah, you boleh tekan kulit anak dengan jari, kalau kuning nya hilang lepas tekan tu memang ada jaundice, tapi if it comes back quickly, it's likely there. Honest to say macam-macam tips people mention, tapi yang paling penting sebenarnya is frequent feeding lah, a few mums swear by feeding every 1.5-2 hours because it helps with the bilirubin breakdown naturally through milk intake.
Before clinic visit itu, make sure anak feeding well dan dapatkan morning sun exposure (gentle, not too long), some mums notice it helps, though nothing beats the proper check at KK tu. Tapi jangan expect the levels to drop drastically sendiri lah; if they need phototherapy, the blue lights kat hospital memang very effective, usually just a day or two aja dah boleh cukup.
Best you mention the feeding frequency and any yellowing you notice to the doctor on Monday, so dia boleh track properly. All the best!