Answer:it is necessary to replace the informal expressions: gonna and high tail
Step-by-step explanation:
In order to make this sentence The patient's not gonna see the doctor if he doesn't high tail to the hospital on time, more appropriate for an academic text it is necessary to replace the informal expressions: gonna and high tail.Furthermore, the contractions must not be used.
Here are two possible versions the first one a neutral style and the second one more formal.
1- if he does not rush to the hospital the patient will not be able to see the doctor.
2-Should the patient have the wish to see the doctor on time, he must move with urgent haste.