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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Free Nursing Study Resources

Correct Answer is A

Explanation

A) Fish: Fish, especially fatty fish like salmon, mackerel, sardines, and trout, are rich sources of omega-3 fatty acids. Omega-3 fatty acids are essential for heart health, reducing inflammation, and supporting brain function. Including fish in the diet is highly recommended for obtaining these beneficial fats naturally.

B) Leafy green vegetables: While leafy green vegetables provide many essential nutrients, they are not significant sources of omega-3 fatty acids. They are more commonly known for their vitamins, minerals, and fiber content, which are important for overall health but do not provide the omega-3s that fish does.

C) Corn oil: Corn oil is high in omega-6 fatty acids rather than omega-3 fatty acids. While omega-6 fatty acids are also necessary for health, they should be balanced with omega-3s to maintain optimal health. Corn oil does not contribute significantly to omega-3 intake.

D) Dietary supplements: While omega-3 supplements can be a good alternative for those who do not consume enough fish, obtaining nutrients from whole foods is generally preferred for additional health benefits, such as protein and other nutrients found in fish. Supplements should be considered when dietary intake is insufficient.

A. Obesity II B. overweight C. Normal weight D. Obesity

Correct Answer is A

Explanation

A) Obesity II:

A Body Mass Index (BMI) of 37 falls within the range of 35 to 39.9, which is classified as Obesity Class II according to the World Health Organization (WHO) BMI categories. This classification indicates a higher risk of obesity-related health conditions and complications.

B) Overweight:

The overweight category corresponds to a BMI range of 25 to 29.9. A BMI of 37 is significantly higher than this range, indicating a more severe level of excess weight and associated health risks.

C) Normal weight:

Normal weight is defined by a BMI range of 18.5 to 24.9. A BMI of 37 is well above this range, indicating that the patient has excess body weight far beyond what is considered normal.

D) Obesity:

While the term "obesity" generally refers to a BMI of 30 or higher, specific classes of obesity (Class I, II, and III) are defined for more precise categorization. A BMI of 37 specifically places the patient in the Obesity II category.

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What is the primary pathophysiology of glaucoma?

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Naxlex Comprehensive Predictor Exams

A nurse is instructing a group of clients regarding nutrition. Which of the following is a good source of omega-3 fatty acids that the nurse should include in the teaching?

Correct Answer is A

Explanation

A nurse measures a patient height and weight and calculate his BMI. Patient BMI is 37. Classify according to this BMI results?

Correct Answer is A

Explanation

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