Nursing Elites

1. A client with a nasogastric tube requires irrigation once every shift. The client's serum electrolyte results show a potassium level of 4.5 mEq/L and a sodium level of 132 mEq/L. Based on these findings, which solution should the nurse use for nasogastric tube irrigation?

• A. Tap water
• B. Sterile water
• C. Sodium chloride
• D. Normal saline

Correct answer: C

Rationale: The correct solution for nasogastric tube irrigation in this scenario is sodium chloride. The client's low sodium level of 132 mEq/L indicates the need to avoid further imbalance, making sodium chloride the most appropriate choice. Using tap water, which lacks electrolytes, or sterile water could potentially exacerbate the electrolyte imbalance. Normal saline, while similar to sodium chloride, may not be the best choice as it contains a higher concentration of sodium, which could further elevate the client's already borderline sodium level.

2. The healthcare provider is assessing a client with suspected syndrome of inappropriate antidiuretic hormone (SIADH). Which of the following laboratory findings is most consistent with this condition?

• A. Increased serum sodium
• B. Decreased urine specific gravity
• C. Decreased serum osmolality
• D. Increased serum potassium

Correct answer: C

Rationale: The correct answer is C: Decreased serum osmolality. Syndrome of inappropriate antidiuretic hormone (SIADH) is characterized by the excessive release of antidiuretic hormone (ADH), leading to water retention and dilutional hyponatremia. The dilution of sodium results in decreased serum osmolality. Option A is incorrect because SIADH causes hyponatremia, resulting in decreased serum sodium levels. Option B is incorrect because SIADH leads to concentrated urine with increased urine specific gravity. Option D is incorrect as SIADH does not typically affect serum potassium levels.

3. A client with hyperthyroidism is prescribed propranolol. The nurse explains that this medication is used to:

• A. Increase thyroid hormone production
• B. Decrease thyroid hormone production
• C. Relieve symptoms such as tachycardia and anxiety
• D. Prevent weight loss

Correct answer: C

Rationale: Propranolol is a beta-blocker that works by blocking the effects of adrenaline, which helps to reduce symptoms such as tachycardia (fast heart rate) and anxiety in individuals with hyperthyroidism. Choices A and B are incorrect because propranolol does not affect thyroid hormone production; it only addresses symptoms. Choice D is incorrect because propranolol does not prevent weight loss associated with hyperthyroidism.

4. When caring for a female client with a history of hypoglycemia, Nurse Ruby should avoid administering a drug that may potentiate hypoglycemia. Which drug fits this description?

• A. Sulfisoxazole (Gantrisin)
• B. Mexiletine (Mexitil)
• C. Prednisone (Orasone)
• D. Lithium carbonate (Lithobid)

Correct answer: A

Rationale: The correct answer is A, Sulfisoxazole (Gantrisin). Sulfisoxazole is known to potentiate hypoglycemia, making it unsafe for clients with a history of hypoglycemia. Choice B, Mexiletine, is a medication used to treat certain heart rhythm problems and is not associated with hypoglycemia. Choice C, Prednisone, is a corticosteroid and does not potentiate hypoglycemia. Choice D, Lithium carbonate, is commonly used to treat bipolar disorder and does not typically potentiate hypoglycemia. Therefore, the drug that Nurse Ruby should avoid in this case is Sulfisoxazole (Gantrisin) to prevent worsening the client's hypoglycemic condition.

5. The nurse is caring for a client with diabetes insipidus. Which of the following laboratory findings should the nurse monitor?

• A. Serum sodium
• B. Serum potassium
• C. Serum calcium
• D. Serum magnesium

Correct answer: A

Rationale: In diabetes insipidus, there is excessive excretion of water leading to dehydration. Monitoring serum sodium levels is crucial because these clients often experience hypernatremia (elevated serum sodium levels) due to the loss of relatively more water than sodium, resulting in a sodium concentration imbalance. While monitoring serum potassium, calcium, and magnesium levels is also important in various conditions, they are not the primary focus in diabetes insipidus.

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