A client does not understand why vision loss due to glaucoma is irreversible. What is the nurse's best explanation?
Once the tissue has necrosed from high pressure, it does not regenerate.
Glaucoma always leads to permanent blindness.
Once retinal detachment occurs, it does not return to its normal state.
Once bacterial infection has caused damage, the tissue does not regenerate.
The Correct Answer is A
Choice A reason: Once the tissue has necrosed from high pressure, it does not regenerate is the best explanation, because it describes the mechanism and outcome of glaucoma. Glaucoma is a condition that causes increased intraocular pressure, which damages the optic nerve and the retina, the tissues that are responsible for transmitting and processing visual information. Once these tissues are necrosed, or dead, they do not regenerate, or grow back, resulting in irreversible vision loss.
Choice B reason: Glaucoma always leads to permanent blindness is not a good explanation, because it is inaccurate and pessimistic. Glaucoma does not always lead to permanent blindness, but rather to progressive vision loss that can be prevented or slowed down with early diagnosis and treatment. Glaucoma can cause peripheral vision loss, tunnel vision, or blind spots, but not necessarily complete blindness.
Choice C reason: Once retinal detachment occurs, it does not return to its normal state is not a good explanation, because it is irrelevant and misleading. Retinal detachment is a condition that occurs when the retina separates from the underlying layer of blood vessels, which can cause vision loss or blindness. However, retinal detachment is not caused by glaucoma, nor is it a common complication of glaucoma. Retinal detachment can sometimes be repaired with surgery, depending on the extent and duration of the detachment.
Choice D reason: Once bacterial infection has caused damage, the tissue does not regenerate is not a good explanation, because it is incorrect and confusing. Bacterial infection is not a cause or a consequence of glaucoma, but rather a separate condition that can affect the eye. Bacterial infection can cause inflammation, pain, discharge, or redness in the eye, but not necessarily vision loss or tissue necrosis. Bacterial infection can usually be treated with antibiotics, which can prevent or reverse the damage.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A reason: Inflammation is not an example of a client's primary defense to infection. Inflammation is a secondary defense to infection, which is activated after the primary defense has been breached. Inflammation is a complex process that involves the release of chemical mediators, the dilation of blood vessels, the increase of blood flow, the migration of white blood cells, and the formation of exudate. Inflammation aims to contain, neutralize, and eliminate the infectious agent and to repair the damaged tissue.
Choice B reason: Fever is not an example of a client's primary defense to infection. Fever is a secondary defense to infection, which is activated after the primary defense has been breached. Fever is an elevation of the body temperature above the normal range, which is usually 36.5 to 37.5 degrees Celsius or 97.7 to 99.5 degrees Fahrenheit. Fever is a systemic response to infection that is regulated by the hypothalamus, which is the part of the brain that controls the body's thermostat. Fever enhances the immune system's activity and inhibits the growth of some pathogens.
Choice C reason: Phagocytosis is not an example of a client's primary defense to infection. Phagocytosis is a secondary defense to infection, which is activated after the primary defense has been breached. Phagocytosis is a process that involves the engulfment and destruction of foreign particles, such as bacteria, by specialized cells, such as macrophages and neutrophils. Phagocytosis is a type of cellular immunity that eliminates the infectious agent and prevents its spread.
Choice D reason: Intact skin is an example of a client's primary defense to infection. Intact skin is the first and most important line of defense against infection, as it forms a physical barrier that prevents the entry of pathogens into the body. Intact skin also has chemical and biological properties that resist infection, such as the acidic pH, the secretion of sebum and sweat, and the presence of normal flora. Intact skin protects the underlying tissues and organs from infection and injury.
Correct Answer is C
Explanation
Choice A reason: Calling the provider is not the intervention that the nurse should perform first, because it is not the most urgent and relevant action. Calling the provider is a communication intervention, not a respiratory intervention. Calling the provider is an important action, but it should be done after raising the head of the bed, and with accurate and complete information.
Choice B reason: Placing the client in the lithotomy position is not the intervention that the nurse should perform first, because it is not the most urgent and relevant action. Placing the client in the lithotomy position is a positioning intervention, not a respiratory intervention. Placing the client in the lithotomy position is a specific action that is used for pelvic examinations or procedures, not for improving oxygenation.
Choice C reason: Raising the head of the bed is the intervention that the nurse should perform first, because it is the most urgent and relevant action. Raising the head of the bed is a respiratory intervention, not a communication, positioning, or analgesic intervention. Raising the head of the bed is a simple and effective action that can improve the client's breathing, oxygenation, and comfort.
Choice D reason: Obtaining pain medication is not the intervention that the nurse should perform first, because it is not the most urgent and relevant action. Obtaining pain medication is an analgesic intervention, not a respiratory intervention. Obtaining pain medication is an important action, but it should be done after raising the head of the bed, and with a medical order and a proper route.
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