MRO PRACTICE EXAM SCRIPT 2026 TESTED
QUESTIONS AND CORRECT ANSWERS
ALREADY PASSED
◉ If the plunger on the syringe is pulled back too fast the specimen
may be. Answer: hemolyzed
◉ When performing a heel puncture on an infant, proper technique
includes. Answer: placing lancet flat against the skin on the medial
or lateral plantar surface of heel.
◉ what condition would most likely cause hemoconcentration?.
Answer: Dehydration.
◉ What can cause hematoma formation?. Answer: firmly anchoring
vein in needle insertion.
◉ anticoagulant in green top tube. Answer: sodium heprin
◉ what is preferred method for infant blood collection?. Answer:
capillary
,◉ what tube is normally used to collect a serum sample?. Answer:
red top
◉ correct angle for the needle to be inserted into skin?. Answer: 30
degrees
◉ why is it necessary to wipe first drop of blood away when
performing a capillary procedure?. Answer: to reduce interstitial
fluid contamination
◉ Alcohol should be allowed to dry completely prior to skin
puncture to. Answer: prevent lysis of red blood cells
◉ the phlebotomist places blood specimen in circles on special filter
paper, for what test?. Answer: PKU
◉ A falsely decreased blood alcohol level may be obtained if.
Answer: the tube is only partially filled
◉ Following venipuncture, what should be applied to venipuncture
site?. Answer: clean sterile gauze pad
, ◉ When is a phlebotomist allowed to perform a venipuncture on an
ankle vein?. Answer: When all other options have been exhausted
and the physician has given approval.
◉ By bracing the hand while holding the needle assembly against
the patients arm you. Answer: prevent excess needle movement
◉ When performing a capillary blood collection, the first drop of
blood is wiped away because. Answer: the first drop typically has
more tissue fluid
◉ What instrument may be used when trying to visualize the veins
during venipuncture. Answer: Venoscope
◉ What is correct procedure when performing blood smear for
leukocyte alkaline phosphate (LAP)?. Answer: Perform skin
puncture, wipe away the first drop of blood & then touch slide to the
next drop of blood.
◉ How long should a tourniquet be placed around a patients arm?.
Answer: no more than one minute
◉ Hemoconcentration of a specimen can be avoided by?. Answer:
Removing the tourniquet within one minute.
QUESTIONS AND CORRECT ANSWERS
ALREADY PASSED
◉ If the plunger on the syringe is pulled back too fast the specimen
may be. Answer: hemolyzed
◉ When performing a heel puncture on an infant, proper technique
includes. Answer: placing lancet flat against the skin on the medial
or lateral plantar surface of heel.
◉ what condition would most likely cause hemoconcentration?.
Answer: Dehydration.
◉ What can cause hematoma formation?. Answer: firmly anchoring
vein in needle insertion.
◉ anticoagulant in green top tube. Answer: sodium heprin
◉ what is preferred method for infant blood collection?. Answer:
capillary
,◉ what tube is normally used to collect a serum sample?. Answer:
red top
◉ correct angle for the needle to be inserted into skin?. Answer: 30
degrees
◉ why is it necessary to wipe first drop of blood away when
performing a capillary procedure?. Answer: to reduce interstitial
fluid contamination
◉ Alcohol should be allowed to dry completely prior to skin
puncture to. Answer: prevent lysis of red blood cells
◉ the phlebotomist places blood specimen in circles on special filter
paper, for what test?. Answer: PKU
◉ A falsely decreased blood alcohol level may be obtained if.
Answer: the tube is only partially filled
◉ Following venipuncture, what should be applied to venipuncture
site?. Answer: clean sterile gauze pad
, ◉ When is a phlebotomist allowed to perform a venipuncture on an
ankle vein?. Answer: When all other options have been exhausted
and the physician has given approval.
◉ By bracing the hand while holding the needle assembly against
the patients arm you. Answer: prevent excess needle movement
◉ When performing a capillary blood collection, the first drop of
blood is wiped away because. Answer: the first drop typically has
more tissue fluid
◉ What instrument may be used when trying to visualize the veins
during venipuncture. Answer: Venoscope
◉ What is correct procedure when performing blood smear for
leukocyte alkaline phosphate (LAP)?. Answer: Perform skin
puncture, wipe away the first drop of blood & then touch slide to the
next drop of blood.
◉ How long should a tourniquet be placed around a patients arm?.
Answer: no more than one minute
◉ Hemoconcentration of a specimen can be avoided by?. Answer:
Removing the tourniquet within one minute.
