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.

Answer and Explanation

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.

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Correct Answer is A

Explanation

A. 20 represents the distance you are placed from the chart and 40 represents the distance a normal eye reads the chart:

This is correct. The first number (20) represents the distance in feet the patient is from the Snellen chart. The second number (40) indicates the distance at which a person with normal vision can read the same line. Therefore, 20/40 means that what the patient can read at 20 feet, a person with normal vision can read at 40 feet.

B. 20 represents the distance a normal eye can read and 40 represents the distance your eye reads the chart:

This is incorrect. The first number should represent the distance the patient is from the chart, not the normal eye's reading distance.

C. 20 represents the distance you are placed from the chart and 40 represents the distance your eye reads the chart:

This is incorrect. While the first number is correct (the distance from the chart), the second number should represent the distance a person with normal vision can read the same line, not the patient's distance.

D. 40 represents the distance you are placed from the chart and 20 represents the distance a normal eye reads the chart:

This is incorrect. The standard for visual acuity measurements is that the first number represents the testing distance (usually 20 feet), and the second number represents the distance at which a normal eye can read the line.

A. Location B. Color C. Condition of surrounding skin D. Elevation E. Distribution pattern

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.

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What is the primary pathophysiology of glaucoma?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is performing a complete physical examination on a patient. After examining the patient with the Snellen chart, the nurse documented distance vision in both eyes 20/40. The patient asks the nurse what 20/40 means:

Correct Answer is A

Explanation

After completing an integument physical examination, the nurse is documenting information concerning observed lesions. What characteristics will the nurse include in this documentation? (Select all that apply.)

Correct Answer is ["A","B","C","D","E"]

Explanation

When the nurse is preparing to assess the thyroid gland of a client with suspected hypothyroidism, why is it important to bring a cup of water to the physical examination?

A nurse is assessing a client who has hypothyroidism. The nurse should expect which of the following findings?

A 75-year-old male who is a chronic alcoholic present to the medical office for his annual wellness visit. How would describe the findings found in photo?

During a health history, a 48-year-old client states, "I've noticed that I need to hold my newspaper farther away so that I can read it." Which of the following would the nurse suspect?

At which location would a nurse palpate a client's occipital lymph nodes?

During assessment, the nurse would expect which part of the body to indicate central cyanosis in a client with a severe asthma attack?

What is the primary pathophysiology of glaucoma?

The nurse notes a break in the skin, which appears blister-like, it looks superficial with loss up to the dermis layer. The nurse would interpret this finding as indicating which stage of pressure ulcer.