Nokea
The red blood cells that have been separated from plasma for transfusion are called
- A. Whole blood
- B. Platelets
- C. Packed red blood cells
- D. Plasma concentrate
Correct Answer: C
Rationale: Packed red blood cells are red cells separated from plasma, used for transfusions to treat anemia.
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The interaction between the two drugs that causes a change in the activity or components of one or more of the drugs is known as a
- A. Synergism
- B. Drug interaction
- C. Antagonism
- D. Precipitation
Correct Answer: B
Rationale: A drug interaction occurs when one drug alters the effect or composition of another, potentially affecting efficacy or safety.
The word that means similar to infiltration but involves leakage of vesicant IV fluid medication into the tissue surrounding the IV insertion site is known as
- A. Infiltration
- B. Extravasation
- C. Embolism
- D. Thrombosis
Correct Answer: B
Rationale: Extravasation refers to the leakage of vesicant IV fluids, which can cause severe tissue damage, unlike infiltration, which involves non-vesicant fluids.
Match each IV fluid with the appropriate term that accurately describes the solution's tonicity: D51/2NS
- A. Isotonic
- B. Hypotonic
- C. Hypertonic
Correct Answer: C
Rationale: D5 1/2 NS is hypertonic due to dextrose and sodium content, drawing fluid from cells.
The IVPB is to infuse over 30 minutes. The PB solution bag is 100 mL. The tubing's drop factor is 20. Calculate the gravity infusion rate.
Correct Answer: 67 gtt/min
Rationale: Formula: (100 mL ? 20 gtt/mL) ÷ 30 min = 2000 ÷ 30 = 66.67, rounded to 67 gtt/min.
Characteristics of a 'good' vein site to use for IV initiation include which of the following?
- A. Vein feels firm, hard, and sturdy
- B. Vein has a bifurcation
- C. Vein feels spongy and bouncy
- D. Vein rolls easily
- E. Vein is easy to feel
Correct Answer: C,E
Rationale: A good vein is spongy, bouncy, and palpable, indicating it's healthy and accessible.