Certified Paraoptometric (CPO) Practice Exam 2025

Disable ads (and more) with a membership for a one time $2.99 payment

Gear up for the Certified Paraoptometric (CPO) Exam 2025. Study with interactive quizzes and multiple-choice questions with comprehensive explanations. Excel in your exam with our tailored preparation tools!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

How long is the duration for Proparacaine?

5-10 minutes
10-15 minutes
15-20 minutes
30 minutes

The correct answer is: 15-20 minutes

Proparacaine is a local anesthetic commonly used in ophthalmology for procedures involving the eyes. Its typical duration of effect is about 15 to 20 minutes. This timeframe allows for quick procedures, such as tonometry and foreign body removal, while ensuring patient comfort. The anesthetic works by temporarily blocking nerve signals in the area where it is applied, providing sufficient time for medical personnel to carry out the necessary tasks without significant pain to the patient. Other options indicate durations that are either shorter or longer than what is generally accepted for Proparacaine. A shorter duration, such as 5-10 minutes, would not be effective for slightly more involved procedures, while 30 minutes exceeds the usual range and could unnecessarily prolong patient care. Therefore, recognizing the effective timeframe of 15-20 minutes aligns with clinical expectations and practices.