Nursing Elites

1. The type of lipoprotein that carries cholesterol from tissues to the liver for excretion is:

• A. Very low-density lipoprotein
• B. Intermediate-density lipoprotein
• C. Low-density lipoprotein
• D. High-density lipoprotein

Correct answer: D

Rationale: The correct answer is D, High-density lipoprotein (HDL). HDL is known as the 'good' cholesterol and plays a crucial role in transporting cholesterol from tissues back to the liver for excretion. This process helps in reducing the buildup of cholesterol in the bloodstream, thus lowering the risk of heart diseases. Very low-density lipoprotein (Option A), Intermediate-density lipoprotein (Option B), and Low-density lipoprotein (Option C) are not responsible for carrying cholesterol back to the liver for excretion like HDL does. Instead, they are associated with different functions related to cholesterol transportation within the body.

2. Which electrolyte imbalance is a potential side effect of diuretics?

• A. Hyperkalemia
• B. Hypercalcemia
• C. Hypomagnesemia
• D. Hypokalemia

Correct answer: D

Rationale: The correct answer is D, Hypokalemia. Diuretics commonly lead to hypokalemia, which is low potassium levels in the body. Hyperkalemia (choice A) is the opposite, indicating high potassium levels. Hypercalcemia (choice B) refers to elevated calcium levels, not typically associated with diuretics. Hypomagnesemia (choice C) is low magnesium levels and can also be a consequence of diuretic use, but potassium imbalance is more common.

3. Short-bowel syndrome usually occurs when:

• A. The longitudinal muscles of the intestine contract
• B. More than 50% of the small intestine is surgically removed
• C. More than 50% of the large intestine is surgically removed
• D. Transit time is decreased due to infection or drugs

Correct answer: B

Rationale: Short-bowel syndrome usually occurs when more than 50% of the small intestine is surgically removed. This condition results in malabsorption of nutrients and fluids due to the reduced length of the small intestine. Choice A is incorrect because the contraction of longitudinal muscles does not lead to short-bowel syndrome. Choice C is incorrect as short-bowel syndrome is primarily related to the small intestine, not the large intestine. Choice D is incorrect since decreased transit time due to infection or drugs is not a direct cause of short-bowel syndrome.

4. The nurse is aware that norepinephrine is secreted by which endocrine gland?

• A. The pancreas
• B. The adrenal cortex
• C. The adrenal medulla
• D. The anterior pituitary gland

Correct answer: C

Rationale: The correct answer is C: The adrenal medulla. Norepinephrine is secreted by the adrenal medulla and is involved in the body's 'fight or flight' response. The pancreas (choice A) secretes insulin and glucagon, not norepinephrine. The adrenal cortex (choice B) secretes hormones like cortisol and aldosterone, but not norepinephrine. The anterior pituitary gland (choice D) secretes various hormones like growth hormone and thyroid-stimulating hormone, but not norepinephrine.

5. The nurse in the pediatric clinic performs a physical assessment of a 13-year-old boy. Which of the following findings by the nurse requires immediate intervention?

• A. The adolescent complains of his scrotum aching after exercise. The nurse palpates a worm-like mass above the testes.
• B. The nurse noted unilateral breast enlargement.
• C. The child’s scrotum appears swollen, and a soft mass is palpated. The nurse is unable to insert a finger above the mass.
• D. The child’s scrotum appears enlarged and red. The nurse palpated a thickened and swollen spermatic cord.

Correct answer: D

Rationale: Choice D is the correct answer because a swollen and thickened spermatic cord could indicate testicular torsion, which is a surgical emergency. Testicular torsion occurs when the spermatic cord twists, cutting off the blood supply to the testicle. This condition requires immediate intervention to prevent testicular damage. Choices A, B, and C do not present findings that suggest a surgical emergency requiring immediate intervention.

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