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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A reason: A 44yearold prescribed antibiotics for pneumonia is not at the greatest risk for pressure injury development, because he or she does not have any major risk factors for pressure injury. Pressure injury is a localized damage to the skin and underlying tissues caused by pressure, shear, friction, or moisture. Antibiotics for pneumonia do not directly affect the skin integrity or blood circulation, nor do they impair the mobility or sensation of the client.
Choice B reason: A 26yearold bedridden client with a fractured leg is at a high risk for pressure injury development, but not the greatest, because he or she has only one major risk factor for pressure injury. Bedridden status is a major risk factor for pressure injury, because it causes prolonged pressure on the bony prominences, such as the sacrum, heels, or hips, which can impair blood flow and oxygen delivery to the skin and tissues. However, the client's age, fracture, and mobility may mitigate some of the risk, as he or she may have better skin elasticity, wound healing, and ability to reposition.
Choice C reason: A 65yearold with hemiparesis and incontinence is at the greatest risk for pressure injury development, because he or she has multiple major risk factors for pressure injury. Age is a risk factor for pressure injury, because it causes decreased skin elasticity, thickness, and vascularity, which can affect the skin's resilience and repair. Hemiparesis is a risk factor for pressure injury, because it causes reduced mobility, sensation, and muscle mass, which can affect the client's ability to reposition, feel pain, and maintain tissue perfusion. Incontinence is a risk factor for pressure injury, because it causes moisture, irritation, and infection of the skin, which can weaken the skin barrier and delay wound healing.
Choice D reason: A 78yearold requiring assistance to ambulate with a walker is at a moderate risk for pressure injury development, but not the greatest, because he or she has only one major risk factor for pressure injury. Age is a risk factor for pressure injury, as explained above. However, the client's ambulation and assistance may reduce some of the risk, as he or she may have less pressure, shear, and friction on the skin and tissues, and more blood circulation and oxygen delivery.
Correct Answer is C
Explanation
Choice A reason: Capillary refill is not the nurse's priority assessment for this client, because it is not the most relevant and sensitive indicator of the client's condition. Capillary refill is a test that measures the time it takes for the color to return to the nail bed after applying pressure, which reflects the peripheral circulation and tissue perfusion. Capillary refill can be affected by factors such as temperature, hydration, or vasoconstriction. Capillary refill is not a specific or reliable sign of PCP, which is a type of pneumonia caused by a fungus that affects the lungs and respiratory system.
Choice B reason: Radial pulses are not the nurse's priority assessment for this client, because they are not the most relevant and sensitive indicator of the client's condition. Radial pulses are the beats that can be felt at the wrist, which reflect the heart rate and rhythm. Radial pulses can be affected by factors such as activity, emotion, or medication. Radial pulses are not a specific or reliable sign of PCP, which is a type of pneumonia caused by a fungus that affects the lungs and respiratory system.
Choice C reason: Lung sounds are the nurse's priority assessment for this client, because they are the most relevant and sensitive indicator of the client's condition. Lung sounds are the noises that can be heard with a stethoscope over the chest, which reflect the air movement and ventilation in the lungs and airways. Lung sounds can reveal the presence of abnormalities, such as crackles, wheezes, or diminished breath sounds, which indicate fluid, inflammation, or obstruction in the lungs or airways. Lung sounds are a specific and reliable sign of PCP, which is a type of pneumonia caused by a fungus that affects the lungs and respiratory system.
Choice D reason: Skin turgor is not the nurse's priority assessment for this client, because it is not the most relevant and sensitive indicator of the client's condition. Skin turgor is a test that measures the elasticity of the skin, which reflects the hydration and fluid status of the body. Skin turgor can be affected by factors such as age, weight loss, or edema. Skin turgor is not a specific or reliable sign of PCP, which is a type of pneumonia caused by a fungus that affects the lungs and respiratory system.
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