Nursing Elites

1. Which atrioventricular heart block is also referred to as Mobitz II?

• A. Third-degree atrioventricular heart block
• B. Second-degree atrioventricular heart block
• C. First-degree atrioventricular heart block
• D. Complete heart block

Correct answer: B

Rationale: The correct answer is B. Second-degree atrioventricular heart block is also known as Mobitz II. In Mobitz II, some atrial impulses are blocked from reaching the ventricles, resulting in occasional dropped beats. Third-degree atrioventricular heart block is known as complete heart block, where no atrial impulses reach the ventricles. First-degree atrioventricular heart block is a condition where there is delayed conduction between the atria and ventricles but all atrial impulses are eventually conducted to the ventricles.

2. What is the most common cause of HHNS?

• A. Insulin overdose
• B. Removal of the adrenal gland
• C. Undiagnosed, untreated hyperpituitarism
• D. Undiagnosed, untreated diabetes mellitus

Correct answer: D

Rationale: The correct answer is D: Undiagnosed, untreated diabetes mellitus. Hyperosmolar hyperglycemic nonketotic syndrome (HHNS) is most commonly caused by undiagnosed and untreated diabetes mellitus. Insulin overdose (Choice A) is not a typical cause of HHNS; it is more related to hypoglycemia. Removal of the adrenal gland (Choice B) can lead to adrenal insufficiency but is not a common cause of HHNS. Undiagnosed, untreated hyperpituitarism (Choice C) is not a usual cause of HHNS; it is more related to pituitary hormone imbalances rather than hyperglycemia.

3. Which of the following foods enhances the absorption of an iron supplement?

• A. Orange juice
• B. Green beans
• C. Fortified milk
• D. Baked potato

Correct answer: A

Rationale: The correct answer is Orange juice. Orange juice enhances the absorption of an iron supplement due to its high vitamin C content. Vitamin C helps in the absorption of non-heme iron, the type of iron found in plant-based foods and iron supplements. Green beans, fortified milk, and baked potato do not have the same level of vitamin C as orange juice, making them less effective in enhancing iron absorption.

4. The nurse is planning care for a patient with acute hypernatremia. What should the nurse include in this patient's plan of care? (select one that does not apply)

• A. Reduce IV access
• B. Limit length of visits
• C. Restrict fluids to 1500 mL per day
• D. Conduct frequent neurologic checks

Correct answer: D

Rationale: For a patient with acute hypernatremia, the nurse should include interventions like reducing free water losses, correcting sodium levels slowly, monitoring neurologic status, and ensuring adequate fluid intake. Conducting frequent neurologic checks is essential in assessing the patient's neurological status and detecting any changes promptly. Therefore, this action should not be excluded from the plan of care. Choices A, B, and C are not directly related to managing acute hypernatremia and can be safely excluded from the plan of care. Reducing IV access, limiting length of visits, and restricting fluids to 1500 mL per day are not appropriate actions for managing acute hypernatremia.

5. Rotating injection sites when administering insulin prevents which of the following complications?

• A. Insulin edema
• B. Insulin lipodystrophy
• C. Insulin resistance
• D. Systemic allergic reactions

Correct answer: B

Rationale: Rotating injection sites when administering insulin helps prevent insulin lipodystrophy, which is the abnormal distribution of fat at injection sites. Insulin edema (choice A) is not prevented by rotating injection sites; it is characterized by swelling at the site of insulin injection due to increased capillary permeability. Insulin resistance (choice C) is a condition where the body's cells become less responsive to insulin, and rotating injection sites does not directly prevent this. Systemic allergic reactions (choice D) are not specifically prevented by rotating injection sites; they are related to an allergic response to insulin.

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