Nursing Elites

1. The chief mechanism for maintaining fluid balance is to:

• A. adjust fluid intake so it equals fluid output.
• B. adjust fluid intake so it is slightly above fluid output.
• C. adjust fluid output so it equals fluid input.
• D. adjust fluid intake so it is slightly below fluid output.

Correct answer: C

Rationale: The correct answer is C: 'adjust fluid output so it equals fluid input.' Maintaining fluid balance involves ensuring that the amount of fluid lost through processes like urination, sweating, and respiration equals the amount of fluid taken in. This ensures that the body stays properly hydrated. Choices A, B, and D are incorrect because they do not focus on the balance between fluid input and output, which is crucial for maintaining proper fluid balance. By adjusting fluid output to equal fluid input, the body can regulate hydration levels effectively, preventing dehydration or overhydration.

2. Which substance dissociates into ions in a water solution?

• A. Intracellular fluid
• B. Interstitial fluid
• C. Plasma
• D. Electrolyte

Correct answer: D

Rationale: The correct answer is 'Electrolyte.' Electrolytes are substances that dissociate into ions when dissolved in water. Intracellular fluid, interstitial fluid, and plasma are not substances that dissociate into ions in a water solution. Intracellular fluid is the fluid inside cells, interstitial fluid is the fluid between cells, and plasma is the liquid component of blood. These choices do not dissociate into ions in a water solution, unlike electrolytes.

3. What is the fluid that surrounds the cells called?

• A. plasma
• B. interstitial fluid
• C. intracellular fluid
• D. edema

Correct answer: B

Rationale: The correct answer is interstitial fluid. Interstitial fluid is the fluid that surrounds and fills the spaces between cells, facilitating nutrient and waste exchange. Plasma, referred to in choice A, is the liquid part of blood. Choice C, intracellular fluid, is the fluid inside cells. Choice D, edema, is an abnormal accumulation of fluid in interstitial spaces, causing swelling.

4. You are doing discharge teaching with a patient who has hypophosphatemia during his time in hospital. The patient has a diet ordered that is high in phosphate. What foods would you teach this patient to include in his diet? Select all that do not apply

• A. Milk
• B. Beef
• C. Poultry
• D. Liver

Correct answer: B

Rationale:

5. A patient's lab results show a slight decrease in potassium. The physician has declined to treat with drug therapy but has suggested increasing the potassium through diet. Which of the following would be a good source of potassium?

• A. Apples
• B. Asparagus
• C. Carrots
• D. Bananas

Correct answer: D

Rationale: Bananas are an excellent source of potassium, making them a good choice to increase potassium levels through diet. While apples, asparagus, and carrots are nutritious, they are not particularly high in potassium compared to bananas. Therefore, choosing bananas would be more effective in increasing the patient's potassium intake.

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