Clinical Procedures Flashcards
7 cards from real CPOA practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Clinical Procedures flashcards as text
When performing applanation tonometry, the fluorescein mires should be adjusted until the inner edges of the two semicircles are:
Answer: Just touching (inner margins meeting)
The correct endpoint for Goldmann tonometry is when the inner edges of the two fluorescein semicircles just touch each other.
A patient is unable to read the 20/400 letter at three meters. The next step for recording acuity is to test:
Answer: Counting fingers (CF)
When a patient cannot resolve any chart letter, acuity is recorded as counting fingers (CF) at the distance the patient correctly identifies finger count.
During automated perimetry, a reliability index called 'false positive rate' measures how often the patient responds when:
Answer: No stimulus is actually presented
False positives occur when patients click the button during 'catch trials' where no stimulus is shown, indicating trigger-happy or unreliable responses.
Which instrument measures the back vertex distance (BVD) between the cornea and the spectacle lens?
Answer: Distometer
A distometer (vertex distance gauge) measures the distance from the back surface of the spectacle lens to the anterior cornea, important for high prescriptions.
When recording blood pressure in a pre-exam health screening, the cuff should be placed:
Answer: Directly on the skin of the upper arm
The cuff must be placed directly on the skin of the upper arm, 2–3 cm above the antecubital fossa, for an accurate measurement.
Which pupil finding, if present in one eye, would be noted as a relative afferent pupillary defect (RAPD)?
Answer: The tested eye fails to constrict briskly when light swings from the fellow eye
In a RAPD (Marcus Gunn pupil), the affected eye's pupil paradoxically dilates when light is swung to it from the normal eye, indicating optic nerve or retinal asymmetry.
Proper hand hygiene between patients in an optometric clinic should consist of:
Answer: Using an alcohol-based hand rub or washing with soap and water for at least 20 seconds
CDC guidelines require either an alcohol-based sanitizer or soap-and-water handwashing for at least 20 seconds to reduce cross-contamination between patients.