Karen,
The protocol is from the Fritzthebrave website and is as follows:

General Anesthesia Concerns

A cat with respiratory disease can be at higher risk when undergoing
anesthesia. The general overall health of the cat helps in making
anesthesia decisions. If anesthesia is deemed necessary, here's what
Dr. Padrid recommends:

"I generally administer a bronchodilator, albuterol by inhalation for
example-about 1 hr. prior to induction of anesthesia. I also strongly
suggest monitoring with a machine called a "pulse oximeter" and an
electrocardiographic monitor during the anesthesia. Ketamine is a
commonly used drug in this setting and is usually very safe for
asthmatic cats- it acts as a bronchodilator itself- but it is
important to pretreat with atropine and readminister atropine during
the procedure to minimize the mucus and saliva accumulation that will
predictably occur." Padrid via personal email.

Personally, I gave Sam Albuterol twice a day the day before surgery
prior to his Flovent and then again the morning of surgery.  The vet
gave him two puffs just prior to anesthesia.

Good luck and Sammy purrs on the way for Pearl.

Julie