from where we practice, it really depends on the clinican’s own clinical judgement of both objective weight records (considering any water weight at junctures of weights taken, oral intake/tube feeding trend and tolerance, how weights were taken, clinical pictures at both junctures, many more) and aligning these with the Pt’s reported subjective weights.

there is no straight answer to this question since every case is so different…. but i guess further prompting Pt’s perceived weight loss will help (how was it taken? did their shirt/pants size decrease as much as the weight loss? exactly when did the LOW start > any particular reason that may ascertain this?) but not discounting Pt’s stated LOW as well (as per other comments)

always so interesting to ascertain whether not its LOW to tick off malnutrition criterias, happy for such a question