NURS 3320 Test Bank Intravenous Therapy Questions and Answers and Rationale
1. You are training nurses at your hospital to insert midline catheters. What would you teach the nurses about how many inches of the catheter should be inserted into the required site and for how long can it be used?
A) ...
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NURS 3320 Test Bank Intravenous Therapy Questions and
Answers and Rationale
1. You are training nurses at your hospital to insert midline catheters.
What would you teach the nurses about how many inches of the
catheter should be inserted into the required site and for how long can
it be used?
A) 1 to 3 inches, used for up to 3 weeks
B) 3 to 6 inches, used for up to 4 weeks
C) 7 to 8 inches, used for up to 5 weeks
D) 8 to 9 inches, used for up to 6 weeks
Ans: B
Feedback:
A midline catheter is 7 to 8 inches long, but only 3 to 6 inches of the
catheter are inserted. This type of catheter can be used for up to 4 weeks
before it requires replacement. Therefore, the other options are incorrect.
2. Your client is going out on pass for the afternoon with his family. The
physician has ordered that his venipuncture device needs to be
temporarily capped. How will you ensure that the vein remains patent?
A) Flush the lock with potassium chloride.
B) Flush the lock with saline or heparinized saline.
C) Flush the lock with cyclical total parenteral nutrition (TPN).
D) Flush the lock with colloid solutions.
Ans: B
Feedback:
When a venipuncture device is temporarily capped, the vein is kept
patent by flushing the lock with saline or heparinized saline. Deaths have
occurred when potassium chloride has been used incorrectly to flush a
lock. TPN solutions are used to provide nutrition, and colloid solutions
are used to replace circulating blood volume; these solutions are not used
to flush locks.
3. You are the emergency department nurse caring for a client who has just
been admitted by ambulance for a suspected myocardial infarction. The
physician orders IV fluids of normal saline to be hung at 100 mL/hr. You
know that this is what type of IV solution?
A) Crystalloid
B) Colloid
C) Hypertonic
Page 1
,D) Hypotonic
Ans: A
Feedback:
The two types of IV solutions are crystalloid and colloid solutions.
Crystalloid solutions consist of water and uniformly dissolved crystals such
as salt (sodium chloride) or sugar (glucose, dextrose). Normal saline is an
isotonic crystalloid solution. Colloid solutions are used to replace blood.
Hypertonic solutions are rarely used. Hypotonic solutions contain fewer
dissolved substances compared with plasma.
Page 2
, 4. The nursing instructor is discussing the different types of IV fluids with
the nursing students. What type of fluid would the instructor tell the
students is used to replace circulating blood?
A) Hypertonic solutions
B) Crystalloid solutions
C) Hypotonic solutions
D) Colloid solutions
Ans: D
Feedback:
Colloid solutions are used to replace circulating blood volume because the
suspended molecules in the solutions pull fluid from other fluid
compartments in the body. Colloids contain blood cells such as RBCs.
Crystalloid solutions are made from water and sodium chloride or sugar.
Hypotonic solutions contain more dissolved substances compared with
plasma. Hypertonic solutions pull fluids into plasma but do not assist with
replacement of cells.
5. You are caring for a client who has an order to receive Hespan IV. The
client asks you what this solution is for. What would be your response?
A) “This solution pulls fluid into the vascular space.”
B) “This is a colloid solution used to replace blood.”
C) “Hespan is a solution used instead of a transfusion.”
D) “Hespan is an artificial blood replacement
product.” Ans: A, B, C
Feedback:
Plasma expanders are nonblood solutions, such as dextran 40
(Rheomacrodex) and hetastarch (Hespan), that pull fluid into the vascular
space. Options B and C are also correct. Hespan is not artificial blood.
6. The nurse caring for a client with an intravenous infusion is looking up
her institution's policy on changing IV equipment used in a venipuncture.
When is most IV tubing changed?
A) Every 12 hours
B) Every 24 hours
C) Every 48 hours
D) Every 72 hours
Ans: D
Feedback:
Most IV tubing is changed every 72 hours, but the exact parameters depend
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