if possible指两件事还是一件？

Measles commences in much the same way as a common cold. The patient should be isolated if possible and excluded from school for 14 days from the appearance of the rash.

如果可能的话，患者应该被隔离，并在出现皮疹后 14 天内不得上学。

if possible是指“The patient should be isolated”和“excluded from school for 14 days from the appearance of the rash”两件事吧？

把if possible放在“The patient should be isolated”会不会误解只是“The patient should be isolated”？如果容易出现这种误解，应该怎么写？