Nokea
The liquid portion of the blood is known as
- A. Serum
- B. Plasma
- C. Lymph
- D. Cerebrospinal fluid
Correct Answer: B
Rationale: Plasma is the liquid component of blood, comprising water, electrolytes, and proteins.
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The health care provider has ordered the IV to infuse at 75 mL/hr. The tubing's drop factor is 10. Calculate the gravity infusion rate. Show your work:
Correct Answer: 13 gtt/min
Rationale: Formula: (75 mL ? 10 gtt/mL) ÷ 60 min = 750 ÷ 60 = 12.5, rounded to 13 gtt/min.
Which of the following is the most important concept related to IV therapy?
- A. Maintain strict asepsis.
- B. Monitor IV infusion rate.
- C. Maintain fluid balance.
- D. Educate the patient about the IV therapy.
Correct Answer: A
Rationale: Strict asepsis is critical to prevent infections, which are a major risk in IV therapy.
In reference to the blood vessels, a word that means hardened is
- A. Aneurysm
- B. Sclerosis
- C. Stenosis
- D. Varicosity
Correct Answer: B
Rationale: Sclerosis describes the hardening of blood vessels, often due to plaque buildup or aging.
A __ forms when one of the agents in a solution separates from the solvent and becomes a solid, insoluble product that looks cloudy, hazy, or like fine floating crystals.
- A. Emulsion
- B. Precipitate
- C. Solution
- D. Suspension
Correct Answer: B
Rationale: A precipitate is a solid that forms in a solution when components become insoluble, appearing cloudy or crystalline.
Because of the fluid shifts in the previous question, prolonged infusion of this type solution when it is not needed can result in which of the following?
- A. Cerebral cells swelling
- B. Increased intracranial pressure
- C. Dehydration of cells
- D. Edema
Correct Answer: A,B,D
Rationale: Excess hypotonic fluid can cause cerebral swelling, increased intracranial pressure, and edema due to fluid overload in cells and interstitial spaces.