When Preparing for Pars Plana Vitrectomy in the Posterior Segment,the

question 7

Multiple Choice

When preparing for pars plana vitrectomy in the posterior segment,the perioperative nurse must be aware that a combined scleral buckling procedure may be necessary.Other important information the perioperative nurse should know before preparing the OR for the procedure includes the location of the ocular problem,the surgeon's plan to address the problem,and the instrumentation and biomedical equipment and devices to be used.Technologic advances in ophthalmic surgery require that perioperative nurses be familiar with complex biomedical equipment.A best practice,stated below,relevant to the safe use of complex equipment would be:

• A) determine the presence and appropriate date (not expired) of the biomedical monitoring label.
• B) demonstrate competence with equipment and check each piece carefully before the patient arrives in the OR.
• C) schedule the manufacturer's representative to be present to provide technical support.
• D) schedule the biomedical clinical engineer to check all equipment before each procedure.

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Definitions:

Resonance Structures

Different Lewis structures that represent the same molecule, used to depict delocalized electrons within certain compounds.

Cyclopentadiene

A cyclic hydrocarbon with the formula C5H6, known for its role in Diels-Alder reactions.

Acidic Hydrogen

A hydrogen atom bonded to an electronegative atom, making it easily released as a proton (H+).

AntiAromatic

Refers to a cyclic, conjugated compound with an odd number of pairs of pi electrons that does not follow Huckel's rule, often making it less stable.