Nursing Elites

1. A nurse teaches a client who is prescribed a central vascular access device. Which statement should the nurse include in this clients teaching?

• A. You will need to wear a sling on your arm while the device is in place
• B. There is no risk of infection because sterile technique will be used during insertion.
• C. . Ask all providers to vigorously clean the connections prior to accessing the device.
• D. You will not be able to take a bath with this vascular access device.

Correct answer: C

Rationale:

2. What is the main water-holding force in the blood capillaries?

• A. Capillary blood pressure
• B. Sodium in the blood plasma
• C. Protein in the blood plasma
• D. Chloride in the blood plasma

Correct answer: C

Rationale: The correct answer is C: Protein in the blood plasma. Plasma proteins, especially albumin, create oncotic pressure, which is the main force responsible for holding water within the blood capillaries. Capillary blood pressure (Choice A) is involved in pushing blood through the capillaries, while sodium and chloride in the blood plasma (Choices B and D) are electrolytes and do not play a significant role in the water-holding force within capillaries.

3. Which positive ion is most prevalent in intracellular fluid?

• A. Calcium
• B. Potassium
• C. Sodium
• D. Magnesium

Correct answer: B

Rationale: The correct answer is Potassium (K+). Potassium is the predominant cation found within cells, making it the most prevalent positive ion in intracellular fluid. Calcium, sodium, and magnesium are also essential ions in the body, but they are not as abundant in intracellular fluid. Calcium is vital for bone health and muscle function, sodium helps in maintaining fluid balance and nerve function, and magnesium is involved in numerous biochemical reactions.

4. Which of the following organs does not contribute to fluid output from the body?

• A. Lungs
• B. Skin
• C. Intestine
• D. Lungs, skin, and intestine

Correct answer: D

Rationale: The correct answer is D. All the listed organs (lungs, skin, and intestines) contribute to fluid loss from the body. Lungs contribute to fluid loss through respiration, skin through sweating, and intestines through excretion. Therefore, none of the organs listed in the options retain fluids within the body. Choices A, B, and C are incorrect because all of these organs play a role in fluid output from the body.

5. Which negative ion is most important in intracellular fluid?

• A. Phosphate ions.
• B. Protein molecules.
• C. Chlorine.
• D. Phosphate ions and protein molecules.

Correct answer: D

Rationale: Intracellular fluid contains phosphate ions and protein molecules as essential anions. Phosphate ions play a crucial role in various cellular processes, including energy transfer. Proteins, being large molecules with negative charges, also contribute significantly to the negative ion concentration within cells. Chlorine is primarily an extracellular anion and is not as prominent as phosphate ions and proteins within intracellular fluid, making it a less important negative ion in this context. Therefore, the correct answer is D because both phosphate ions and protein molecules are crucial negative ions in intracellular fluid.

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