Nursing Process NCLEX Questions

Correct Answer: B

Rationale: The correct answer is B: Thymectomy. The thymus gland is often found to be abnormal in individuals with myasthenia gravis, and removing it through thymectomy can lead to substantial remission of symptoms. This is because the thymus plays a role in the development of the immune system and may be producing antibodies that attack neuromuscular junctions in myasthenia gravis. Choice A, esophagostomy, is a surgical procedure to create an opening in the esophagus for feeding and has no direct impact on myasthenia gravis. Choice C, myomectomy, is the removal of uterine fibroids and is unrelated to myasthenia gravis. Choice D, spleenectomy, is the removal of the spleen and is not a treatment for myasthenia gravis as the spleen is not implicated in the disease process.

Correct Answer: D

Rationale: The correct answer is D: Below-normal urine osmolality level, above-normal serum osmolality level. In diabetes insipidus, there is a deficiency of antidiuretic hormone (ADH), leading to the excretion of large volumes of dilute urine. This results in low urine osmolality as the kidneys are unable to concentrate the urine. On the other hand, the serum osmolality increases due to the lack of ADH causing water retention. Therefore, the laboratory findings of low urine osmolality and high serum osmolality support the diagnosis of diabetes insipidus. Explanation for other choices: A: Above-normal urine and serum osmolality levels - This does not align with the pathophysiology of diabetes insipidus. B: Below-normal urine and serum osmolality levels - This is incorrect as low serum osmolality is not characteristic of diabetes insipidus. C: Above-normal urine osmolality level, below-normal

Correct Answer: D

Rationale: The correct screening test for colorectal cancer is D: Proctosigmoidoscopy after age 50. This test allows direct visualization of the lower colon and rectum, aiding in the detection of polyps or tumors. It is recommended for individuals over 50 years old to screen for colorectal cancer. A: CEA test is not a primary screening tool but rather used for monitoring cancer progression. B: Annual digital examination is not sufficient for colorectal cancer screening. C: Barium enema is less effective compared to colonoscopy for detecting abnormalities in the colon.

Correct Answer: C

Rationale: The correct answer is C: Slowing ventilation. The lungs regulate acid-base balance by controlling carbon dioxide levels through ventilation. Increasing ventilation helps expel excess carbon dioxide, thus regulating pH. Slowing ventilation would lead to CO2 buildup and an imbalance in acid-base levels. Excreting HCO3- into the blood (choice A) helps maintain pH, while increasing ventilation (choice D) aids in removing excess CO2. Therefore, slowing ventilation is the exception as it would disrupt the acid-base balance by not effectively regulating carbon dioxide levels.

Correct Answer: D

Rationale: The correct answer is D because a brain abscess can be caused by direct invasion of the brain, spread of infection by other organs, and spread of infection from nearby sites. Direct invasion occurs when bacteria enter the brain tissue directly, such as through trauma or surgery. Infections from other organs, like the lungs or heart, can spread through the bloodstream to the brain. Infections from nearby sites, such as the ears or sinuses, can also spread to the brain. Therefore, all of these mechanisms can lead to the formation of a brain abscess. Choices A, B, and C individually do not cover all the possible causes of a brain abscess, making D the correct choice.