as needed for
as necessary for
avoid
avoiding
avoidance
call for
call with
chance of
chance for
future
if
immunization against
instructions for
look for
looked for
looking for
looks for
monitor for
monitored for
monitoring for
monitors for
potential
potentially
prevent
preventing
prevention
prn
PRN
p.r.n.
P.R.N.
prognosis for
prophylaxis
prophylactic
return for
return with
return
report new
risk of 
risk for
risk from
risk stratification for
should
should he experience
should she experience
should the patient experience
watch for
watch her for
watch him for
watch patient for
would
unless