NURSADN8 FINAL EXAM QUESTIONS WITH CORRECT ANSWERS
2025 UPDATE
Of the 4 types of CVC (Central Venous Catheters, or Central Lines), which is considered the
LEAST invasive? Why? - ✔✔ PICC as it is not sutured in, reducing the risk for infection that is
carried with the other CVCs
Of the 4 types of CVC (Central Venous Catheters, or Central Lines), which is considered the
LEAST risk for infection? Why? - ✔✔ Port-a-Cath due to its placement *under* the skin
(nothing is sticking out for bacteria to attach to) and its long-term usability
Hemodialysis Catheter (HD-Cath) - ✔✔ Large lumens accommodate hemodialysis or pheresis
procedure (harvests specific blood cells)
Catheter-related bloodstream infections (CR-BSI), vein thrombosis are common problems
Do not use for administering other fluids/medications (except in emergency)
What kind of *dressing* does a central line require? - ✔✔ Sterile occlusive
*Extra Information:* Sterile Occlusive Dressing - ✔✔ A sterile dressing that sticks to the skin
without lifting away at any edges to ensure protection from the entrance of microbes and prevent
infection of the site
The use of *gauze* in a dressing reduces the life of the dressing to _______________, due to its
increased risk to cause infection - ✔✔ 48 hours
,How often should central lines be flushed? - ✔✔ Daily or with each intermittent infusion
Before infusion, it is important to check for *what* with a central line? - ✔✔ Blood return
How should a patient be *positioned* when removing a central line? - ✔✔ Trendelenburg or flat
How should a central line be removed? - ✔✔ Place pt in Trendelenburg or flat position, clamp
all lumens, remove dressing/sutures, cover exit site w/gauze and pressure. Remove line with
slow, consistent movement and ensure that that patient *is performing a Valsalva
maneuver/holding breath until the CVC is removed*
Which (needle cannula) gauge might be chosen for those in emergency situations, high risk
surgeries (bolus) or when there is a need for a large vein?
A. 14/16
B. 18
C. 20
D. 22
E. 24 - ✔✔ A. 14/16
Which (needle cannula) gauge might be chosen for trauma, surgery, blood transfusions, CT dye
or when there is a need for a large vein?
, A. 14/16
B. 18
C. 20
D. 22
E. 24 - ✔✔ B. 18
Which (needle cannula) gauge might be chosen for adult IV fluids and/or antibiotics?
A. 14/16
B. 18
C. 20
D. 22
E. 24 - ✔✔ D. 22
Which (needle cannula) gauge might be chosen for geriatric or pediatric patients?
A. 14/16
B. 18
C. 20
D. 22
E. 24 - ✔✔ E. 24
Which (needle cannula) gauge is the most common and might be chosen for contrast and blood?
2025 UPDATE
Of the 4 types of CVC (Central Venous Catheters, or Central Lines), which is considered the
LEAST invasive? Why? - ✔✔ PICC as it is not sutured in, reducing the risk for infection that is
carried with the other CVCs
Of the 4 types of CVC (Central Venous Catheters, or Central Lines), which is considered the
LEAST risk for infection? Why? - ✔✔ Port-a-Cath due to its placement *under* the skin
(nothing is sticking out for bacteria to attach to) and its long-term usability
Hemodialysis Catheter (HD-Cath) - ✔✔ Large lumens accommodate hemodialysis or pheresis
procedure (harvests specific blood cells)
Catheter-related bloodstream infections (CR-BSI), vein thrombosis are common problems
Do not use for administering other fluids/medications (except in emergency)
What kind of *dressing* does a central line require? - ✔✔ Sterile occlusive
*Extra Information:* Sterile Occlusive Dressing - ✔✔ A sterile dressing that sticks to the skin
without lifting away at any edges to ensure protection from the entrance of microbes and prevent
infection of the site
The use of *gauze* in a dressing reduces the life of the dressing to _______________, due to its
increased risk to cause infection - ✔✔ 48 hours
,How often should central lines be flushed? - ✔✔ Daily or with each intermittent infusion
Before infusion, it is important to check for *what* with a central line? - ✔✔ Blood return
How should a patient be *positioned* when removing a central line? - ✔✔ Trendelenburg or flat
How should a central line be removed? - ✔✔ Place pt in Trendelenburg or flat position, clamp
all lumens, remove dressing/sutures, cover exit site w/gauze and pressure. Remove line with
slow, consistent movement and ensure that that patient *is performing a Valsalva
maneuver/holding breath until the CVC is removed*
Which (needle cannula) gauge might be chosen for those in emergency situations, high risk
surgeries (bolus) or when there is a need for a large vein?
A. 14/16
B. 18
C. 20
D. 22
E. 24 - ✔✔ A. 14/16
Which (needle cannula) gauge might be chosen for trauma, surgery, blood transfusions, CT dye
or when there is a need for a large vein?
, A. 14/16
B. 18
C. 20
D. 22
E. 24 - ✔✔ B. 18
Which (needle cannula) gauge might be chosen for adult IV fluids and/or antibiotics?
A. 14/16
B. 18
C. 20
D. 22
E. 24 - ✔✔ D. 22
Which (needle cannula) gauge might be chosen for geriatric or pediatric patients?
A. 14/16
B. 18
C. 20
D. 22
E. 24 - ✔✔ E. 24
Which (needle cannula) gauge is the most common and might be chosen for contrast and blood?
