I work from 3-11pm shift and the evening nurse told me that the blood sugar has dropped < 50 for one of the patients. So she told me to make sure this patient gets a bed time snack. So, that evening told the CNA to make sure to give the patient a snack at bedtime. Next time I come back, havent heard anything. The following night, told the evening nurse that I personally fed the patient before bedtime so she knew. Weekend off, morning nurse told me blood sugar was <50 again with same patient. Fed the patient again, made sure other DM patients got some snack. I happened to be staying a few extra hours charting, and 0100, CNA said 3 patients were diaphoretic. the evening nurse checked BS on all 3 and <50! Ill be doing a 12 hours shift 7p-7a, so if it happens again tonight, im calling the MD to mayb get the dosage changed or something... right? Im wondering, if its something that im not doing, or perhaps I shouldnt be giving lantus at bedtime, but I wouldnt I need an order to hold lantus? Thoughts and advice are greatly appreciated.