A nurse is providing education to a group of older adults about the signs and symptoms of a myocardial infarction. Which of the following is not a sign of a myocardial infarction?

A. Phacoemulsification is a procedure used to remove cataracts from the eye. It involves using ultrasound waves to break up the cloudy lens (cataract) into small fragments, which are then suctioned out. While this procedure is relevant for cataract treatment, it does not address the acute management of angle-closure glaucoma.
B. Extracapsular cataract extraction is a surgical procedure to remove a cataract from the eye by making an incision and extracting the lens in one piece or in large segments. Like phacoemulsification, this procedure is focused on cataract removal and does not directly treat the underlying issue of acute angle-closure glaucoma.
C. A cochlear implant is a device used to provide a sense of sound to individuals with severe hearing loss or deafness. This procedure is unrelated to the treatment of eye conditions or intraocular pressure and therefore is not appropriate for managing primary angle-closure glaucoma.
D. Surgical iridectomy is a procedure specifically aimed at treating angle-closure glaucoma. It involves creating a small hole (iridectomy) in the peripheral iris to allow aqueous humor to flow from the posterior chamber of the eye to the anterior chamber, bypassing the obstructed drainage angle.

A. Proper hand hygiene is critical to prevent introducing infections into the eye, especially after eye surgery. The client should always wash their hands before touching their eyes or administering any eye drops to maintain sterility and reduce the risk of infection.
B. After extracapsular cataract extraction, the cataract itself does not grow back on the implanted lens. However, a condition called posterior capsule opacification (PCO) can occur, where the membrane behind the lens becomes cloudy. This can be treated with a simple outpatient procedure called YAG laser capsulotomy.
C. Bending at the waist can increase intraocular pressure and put strain on the eye, which can hinder healing or increase the risk of complications. The client should be advised to avoid bending over and instead use alternative methods, such as bending their knees or getting assistance to reach items on the ground.
D. In modern cataract surgery, many procedures are performed without sutures or with self-sealing techniques that do not require suture removal. The specific follow-up care, including whether sutures need to be removed, should be confirmed with the surgeon.
E. Wearing an eye shield at night helps protect the eye from accidental rubbing or injury while sleeping, which is crucial for proper healing. The client should follow the physician's instructions regarding the duration of shield use, but wearing it until cleared by the physician is generally recommended to ensure the eye remains protected during the initial healing period.