AMT/RPT Practice Exam

If a vein feels hard and thready like when palpated, then this vein may be - Answer- sclerosed. 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 p