DETAILED ANSWERS|LATEST
UPDATE!!!!!2026|GUARANTEED PASS|GRADED
Color coding indicates a needle's - ANSWER gauge
Why is it necessary to wipe the first drop of blood away when performing a capillary
procedure? - ANSWER To reduce interstitial fluid contamination
The heel is the recommended site for collection of capillary puncture specimens on infants
and the phlebotomist is going to stick in the posterior curvature of the heel. Is this correct? -
ANSWER No the medial plantar surface of the heel is the best site to prevent possible
bone damage
Heparinized plasma is preferred over serum for some chemistry tests. Heparin prevents
clotting by - ANSWER inactivating thrombin.
Which of the following may cause hematoma formation? - ANSWER Having patient
bend elbow to apply pressure
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 blood drop is wiped away because -
ANSWER the first drop typically has more tissue fluid.
Preanalytical errors are mistakes made - ANSWER before laboratory testing
1
, What antiseptic should the phlebotomy technician use to collect a blood culture? -
ANSWER Chlorhexidine gluconate
The main reason not to use expired evacuated tubes for blood specimen collection is -
ANSWER they may exhibit incomplete filling.
Older patients are more prone to hematoma formation because - ANSWER their veins
have decreased elasticity.
What abnormal color will be observed in serum collected from a patient with jaundice due
to elevated bilirubin levels? - ANSWER Yellow
Which substance has a higher concentration in capillary blood than in venous blood? -
ANSWER Glucose
Which of the following actions could cause the formation of a hematoma? -
ANSWER The needle penetrates all the way through the vein
To prevent glycolysis, which additive is used? - ANSWER Sodium Fluoride
When blood is inoculated into blood culture bottles using a butterfly apparatus the -
ANSWER aerobic bottle in inoculated first.
Which of the following conditions would be most likely cause hemoconcentration? -
ANSWER Dehydration
A collapsed vein will cause a - ANSWER cessation of blood flow
2
UPDATE!!!!!2026|GUARANTEED PASS|GRADED
Color coding indicates a needle's - ANSWER gauge
Why is it necessary to wipe the first drop of blood away when performing a capillary
procedure? - ANSWER To reduce interstitial fluid contamination
The heel is the recommended site for collection of capillary puncture specimens on infants
and the phlebotomist is going to stick in the posterior curvature of the heel. Is this correct? -
ANSWER No the medial plantar surface of the heel is the best site to prevent possible
bone damage
Heparinized plasma is preferred over serum for some chemistry tests. Heparin prevents
clotting by - ANSWER inactivating thrombin.
Which of the following may cause hematoma formation? - ANSWER Having patient
bend elbow to apply pressure
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 blood drop is wiped away because -
ANSWER the first drop typically has more tissue fluid.
Preanalytical errors are mistakes made - ANSWER before laboratory testing
1
, What antiseptic should the phlebotomy technician use to collect a blood culture? -
ANSWER Chlorhexidine gluconate
The main reason not to use expired evacuated tubes for blood specimen collection is -
ANSWER they may exhibit incomplete filling.
Older patients are more prone to hematoma formation because - ANSWER their veins
have decreased elasticity.
What abnormal color will be observed in serum collected from a patient with jaundice due
to elevated bilirubin levels? - ANSWER Yellow
Which substance has a higher concentration in capillary blood than in venous blood? -
ANSWER Glucose
Which of the following actions could cause the formation of a hematoma? -
ANSWER The needle penetrates all the way through the vein
To prevent glycolysis, which additive is used? - ANSWER Sodium Fluoride
When blood is inoculated into blood culture bottles using a butterfly apparatus the -
ANSWER aerobic bottle in inoculated first.
Which of the following conditions would be most likely cause hemoconcentration? -
ANSWER Dehydration
A collapsed vein will cause a - ANSWER cessation of blood flow
2
