I'm not sure what hic refers to here. It would seem to me either to refer to valetudinem, in which case it would be feminine, or 'these things' (i.e. all of [4]) but then then it would be a neuter plural.
Qua illa temperantia, qua patientia, qua etiam constantia novissimam valetudinem tulit! [4] Medicis obsequebatur, sororem patrem adhortabatur ipsamque se destitutam corporis viribus vigore animi sustinebat. [5] Duravit hic illi usque ad extremum, nec aut spatio valetudinis aut metu mortis infractus est, quo plures gravioresque nobis causas relinqueret et desiderii et doloris. (Pliny 5.16)
Unrelated: what's the standard font here at Latin Dicussion? Everytime I copy and paste the fonts get weird and I don't know what family/ size to revert them to.
Qua illa temperantia, qua patientia, qua etiam constantia novissimam valetudinem tulit! [4] Medicis obsequebatur, sororem patrem adhortabatur ipsamque se destitutam corporis viribus vigore animi sustinebat. [5] Duravit hic illi usque ad extremum, nec aut spatio valetudinis aut metu mortis infractus est, quo plures gravioresque nobis causas relinqueret et desiderii et doloris. (Pliny 5.16)
Unrelated: what's the standard font here at Latin Dicussion? Everytime I copy and paste the fonts get weird and I don't know what family/ size to revert them to.