What is the primary pathophysiology of glaucoma?
Blockage of the tear ducts causing excessive tearing.
Inflammation of the cornea resulting in blurry vision.
Increased intraocular pressure (IOP) leading to optic nerve damage.
Degeneration of the lens leading to cataracts.
The Correct Answer is C
A) Blockage of the tear ducts causing excessive tearing:
Blockage of tear ducts (dacryostenosis) results in excessive tearing (epiphora) due to inadequate drainage of tears into the nasal cavity. It does not directly contribute to glaucoma, which primarily involves increased intraocular pressure (IOP) and optic nerve damage.
B) Inflammation of the cornea resulting in blurry vision:
Corneal inflammation (keratitis) can cause blurry vision, pain, and sensitivity to light, but it is not the primary pathophysiology of glaucoma. Glaucoma primarily involves damage to the optic nerve due to elevated IOP.
C) Increased intraocular pressure (IOP) leading to optic nerve damage:
Glaucoma is characterized by elevated IOP, which puts pressure on the optic nerve and can lead to progressive damage and vision loss if untreated. This is the primary pathophysiological process in most types of glaucoma.
D) Degeneration of the lens leading to cataracts:
Cataracts involve the clouding of the lens of the eye, leading to visual impairment. While cataracts are a common condition in older adults, they are not directly related to the pathophysiology of glaucoma, which primarily involves elevated IOP and optic nerve damage.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","B","C","D","E"]
Explanation
A) Location: Documenting the exact location of lesions is crucial for monitoring changes over time, assessing potential spread or resolution, and providing accurate information for future reference. This information helps in the diagnosis and in tracking the effectiveness of treatments.
B) Color: The color of lesions can provide important clues about their nature and cause. For example, red or inflamed lesions might indicate infection or irritation, while darker lesions could suggest malignancy or chronicity. Color changes can also signify healing or worsening of the lesion.
C) Condition of surrounding skin: Noting the condition of the skin around the lesions helps assess whether there is additional inflammation, infection, or other skin conditions that may be related to the primary lesion. This provides a more comprehensive understanding of the patient’s skin health and any secondary complications.
D) Elevation: Elevation refers to whether the lesion is raised, flat, or depressed compared to the surrounding skin. This characteristic helps in identifying the type of lesion, such as a papule, plaque, or ulcer. Elevated lesions might suggest certain dermatological conditions, while depressed lesions might indicate scarring or loss of tissue.
E) Distribution pattern: The pattern of how lesions are distributed on the body can provide diagnostic clues. For example, a linear distribution might suggest contact dermatitis, while a symmetrical distribution could indicate a systemic condition. Understanding the distribution pattern helps in identifying the underlying cause and planning appropriate treatment.
Correct Answer is C
Explanation
A) Intercostal spaces:
Assessing intercostal spaces typically involves palpating or inspecting the area between the ribs to check for abnormalities such as retractions or tenderness, usually conducted with the client sitting or standing.
B) Lymph nodes:
Palpation of lymph nodes, such as in the cervical region, involves using fingertips to gently feel for enlarged or tender nodes. This examination focuses on areas like the neck, underarms, and groin.
C) Skin Turgor:
The image depicts a nurse pinching the skin, likely on the chest or forearm, which is a common method to assess skin turgor. Skin turgor evaluation helps determine hydration status; if the skin remains tented and returns slowly to its original position, it indicates dehydration.
D) Carotid Pulse:
Assessing the carotid pulse involves palpating the carotid artery along the side of the neck to evaluate the strength and rhythm of the pulse. This is typically done using the pads of the fingers, not by pinching the skin.
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