Mixed Deck — All COST Topics Flashcards

What role does documentation play in patient safety protocols?

Answer: It is a critical legal and clinical requirement

Thorough documentation in patient safety protocols is both a legal requirement and essential for continuity of patient care.

What is the main purpose of the Bowie-Dick test run in a prevacuum steam sterilizer?

Answer: To check air removal and steam penetration

The Bowie-Dick test detects residual air pockets that would block steam penetration in dynamic air-removal sterilizers.

According to AAMI/AORN guidance, when is immediate-use steam sterilization (IUSS) appropriate?

Answer: Only when there is an urgent need and no time for terminal processing

IUSS is meant for urgent situations, not for convenience or to make up for too few instrument sets.

Which cells of the retina are primarily responsible for phototransduction in low-light (scotopic) conditions?

Answer: Rod cells

Rod photoreceptors contain rhodopsin and are exquisitely sensitive to dim light, making them the primary mediators of scotopic (night) vision.

What is the primary route by which aqueous humor drains from the eye to maintain intraocular pressure?

Answer: Schlemm's canal via the trabecular meshwork

About 80–90% of aqueous outflow occurs through the trabecular meshwork into Schlemm's canal, then into the episcleral venous system.

What is the standard of care requirement for patient communication in clinical practice?

Answer: The level of care a reasonably competent practitioner would provide

The standard of care is defined as what a reasonably competent practitioner with similar training would provide under similar circumstances.

Which agent is used as a surgical adjunct during vitreoretinal surgery to create a posterior vitreous detachment (PVD) pharmacologically?

Answer: Ocriplasmin (vitreolysis)

Ocriplasmin (a recombinant truncated plasmin) is injected intravitreally to cleave fibronectin and laminin at the vitreoretinal interface, inducing pharmacologic vitreolysis and PVD.

Why should patients avoid strenuous activities immediately after eye surgery?

Answer: To prevent intraocular pressure increase.

Strenuous activities can increase intraocular pressure, which may lead to complications such as bleeding or lens displacement.

Fluorescein dye staining of the cornea viewed under cobalt blue light is used primarily to detect:

Answer: Epithelial defects

Fluorescein pools in areas of missing epithelium and glows green under cobalt blue light.

What role does documentation play in pharmacology basics?

Answer: It is a critical legal and clinical requirement

Thorough documentation in pharmacology basics is both a legal requirement and essential for continuity of patient care.

A retained surgical sponge is discovered after a cataract-and-vitrectomy case, and the patient sues without needing to explain exactly how it happened. Which legal doctrine applies?

Answer: Res ipsa loquitur

Res ipsa loquitur ('the thing speaks for itself') applies when the injury could not occur without negligence and the instrument was under the defendant's control.

What role does documentation play in clinical assessment methods?

Answer: It is a critical legal and clinical requirement

Thorough documentation in clinical assessment methods is both a legal requirement and essential for continuity of patient care.

Which postoperative instruction is most critical for patients after cataract surgery?

Answer: Avoid rubbing the eyes.

Patients should avoid rubbing their eyes to prevent complications such as increased intraocular pressure or dislocation of the intraocular lens.

What is the correct way to fix an error in a paper surgical record?

Answer: Draw a single line through it, write the correction, and initial and date it

A single line keeps the original entry legible, preserving the record's legal integrity.

How should delicate ophthalmic surgical instruments be cleaned?

Answer: Using ultrasonic cleaning to preserve delicate parts.

Delicate ophthalmic surgical instruments should be cleaned using ultrasonic cleaning, as this method effectively removes debris from intricate parts without causing damage. Ultrasonic cleaners use high-frequency sound waves to create microscopic bubbles that gently dislodge contaminants from instrument surfaces. This gentle yet thorough cleaning preserves the integrity and functionality of fine instruments, which are essential for precise eye surgery.

Corneal sensation is commonly assessed by which method?

Answer: Cotton wisp or Cochet-Bonnet esthesiometer

A cotton wisp or Cochet-Bonnet esthesiometer touches the cornea to assess trigeminal sensory function.

In the context of Certified Ophthalmic Surgical Technologist, what is the primary goal of patient communication?

Answer: Optimal patient outcomes and safety

The primary goal of patient communication in Certified Ophthalmic Surgical Technologist is always to achieve optimal patient outcomes while maintaining safety standards.

How should a practitioner handle an unexpected finding during diagnostic procedures procedures?

Answer: Document it and follow established protocols for further evaluation

Unexpected findings must be documented and addressed through established protocols to ensure patient safety.

Which ethical principle is most directly applicable to clinical assessment methods?

Answer: Beneficence — acting in the patient's best interest

Beneficence, the principle of acting in the patient's best interest, is fundamental to ethical practice in clinical assessment methods.

Which ocular tissues carry the highest risk for transmitting Creutzfeldt-Jakob disease (CJD) prions?

Answer: Retina and optic nerve

The retina and optic nerve are neural tissue and are classified as high-infectivity tissue for prions.