What should a nurse inform a client with glaucoma who is starting timolol?

Timolol is a non-selective beta-blocker used in the treatment of glaucoma to help lower intraocular pressure. It can affect the cardiovascular system since it is absorbed systemically, which is why monitoring for changes in heart rate is important. Patients might experience bradycardia (a decreased heart rate) as a side effect of this medication.

Informing the client to watch for decreased heart rate is critical, as it helps promote patient safety and understanding of potential side effects associated with timolol. If the patient observes a significant decrease in heart rate or experiences symptoms such as dizziness or fainting, they should report these to their healthcare provider immediately.

Other options, while relevant, do not capture the primary concern with timolol. Monitoring for increased intraocular pressure would not be appropriate as timolol is expected to decrease it. An increase in vision clarity is not a guaranteed effect of the medication and may not be perceived immediately. Advising the client to discontinue use due to eye irritation is important, but it is a secondary concern compared to the cardiovascular effects.