Phlebotomy Practice Test Questions and Answers
Since special precautions are needed for patients with Vascular Access Devices, which of the following devices are contraindicated for any type of blood draws? - Answer-Fistula
The AV fistula requires the surgical connection of a vein and artery, t...
Phlebotomy Practice Test Questions
and Answers
Since special precautions are needed for patients with Vascular Access Devices, which
of the following devices are contraindicated for any type of blood draws? - Answer-
Fistula
The AV fistula requires the surgical connection of a vein and artery, typically in the
forearm. It is predominately used for patients in renal failure who may need long term
dialysis. To avoid any complications, blood draws are contraindicated
A CMP is ordered for an older adult patient whose veins continue to collapse despite
drinking water. Which of the following is the best collection method for this patient? -
Answer-butterfly needle
A phlebotomist has received a requisition to collect a blood culture. Using a butterfly,
three milliliters of blood is collected. Into which of the following bottles is the proper
dispensation of the specimen? - Answer-place all three mLs in the aerobic bottle
Since the phlebotomist was only able to obtain three milliliters of blood, place all three
mLs in the aerobic bottle.
A phlebotomist has received a requisition to collect a blood specimen on patient in
isolation. When entering the patient's room, which should the phlebotomist do first?
Your answer was correct! - Answer-The phlebotomist should put on the gown, followed
by the mask and gloves. To reduce the risk of contaminating oneself with infectious
agents, the order of removal of personal protective equipment is important. As a rule,
remove items in the following order: gloves, mask, then gown.
A phlebotomist inserts a needle into a patient's vein and notices there is no blood flow
into the tube. The needle is positioned against the wall of the vein. How should the
phlebotomist proceed? - Answer-Relax the needle's angle slightly, and insert new tube
If the needle is believed to be positioned against the vein wall, sometimes relaxing the
needle's angle slightly will bring blood into the blood collection tube. In case the tube's
vacuum was compromised, using a new tube should provide blood flow.
After selecting the appropriate location to collect a blood sample, how many inches
above that location should the phlebotomist fasten the tourniquet? - Answer-3 to 4
inches
, A patient with an order for a blood draw presents with burns covering both arms. Which
of the following is the medical assistant's best option for collecting the largest amount of
blood for this patient? - Answer-microtainer tube
A microtainer tube would be the best choice in this case. If a patient has burns covering
both arms, a routine venipuncture from a brachial vein is not an option. The person
collecting the blood will have the best chance at getting the highest volume of blood
from a smaller vein using a microtainer tube (has less vacuum pressure than a regular
sized tube)
Capillary blood specimen collections are contraindicated in patients with - Answer-
peripheral edema.
Patients with peripheral edema have a great deal of fluid in their tissue. Collection of
capillary blood would provide a sample that is likely to be highly diluted with tissue fluid,
affecting laboratory test results.
For which of the following patients is the use of an adhesive bandage contraindicated? -
Answer-newborn with hyperbilirubinemia
The person collecting a blood sample from a newborn with hyperbilirubinemia would not
use an adhesive bandage post-stick. Bleeding would be stopped by direct pressure and
no bandage would be utilized. It is not recommended to use a bandage on children
under two years of age because it could introduce a choking hazard if the child works
the bandage loose. Bandaging a newborn's foot is a controversial issue because of skin
sensitivity and potential bandage aspiration. Sensitivity is of particular concern in
newborns with hyperbilirubinemia as they must endure multiple sample collections. Still,
the incision should be monitored for bleeding and inflammation.
The medical assistant is collecting a sample on a 2 year old outpatient by finger stick.
Following the collection, the medical assistant holds firm pressure on the site until
bleeding has stopped. How should the medical assistant proceed? - Answer-Do not
bandage the site.
If the child has shown evidence of wanting to touch everything in sight, the phlebotomist
should not add a bandage to the list of things within his reach as a 2 year old could
easily decide to put it in his mouth. Putting a smiley face on the bandage might make it
even more enticing. A pressure dressing is unwarranted if firm pressure was held on the
site until bleeding stopped.
After a phlebotomist has successfully followed all the steps for blood collection, the
patient informs the phlebotomist that he tends to bleed longer than the average person.
What would be the next course of action for the phlebotomist? - Answer-confirm
hemostasis and apply paper tape
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