Understanding Phlebotomy PT 1 Flashcards
Process of collecting blood through vein by using incision or puncture method to draw blood for analysis or as part of therapeutic or diagnostic measures under the physician’s request
Phlebotomy
Phlebotomy is the process of collecting blood through vein by using incision or puncture method to draw blood for analysis or as part of _____ or ________ measures under the physician’s request
therapeutic, diagnostic
Phlebotomy is derived from two Greek words which are?
phlebos - vein
temnein/tomos(tome) - to cut
Phlebotomy is also called as _____________
Venesection
Venesection comes from the Latin words
Vena - vein
Sectio - cutting
Evolution of phlebotomy: used crude tools to cut vessels and drain blood from the body
stone age
Evolution of phlebotomy: Ancient Egyptians also practiced phlebotomy as form of “bloodletting”
1400 BC
Evolution of phlebotomy: Hippocrates believed that a person’s health depends on the balance of the four humors
460 - 377 BC
The four humors and their equivalent element: blood and brain
Earth
The four humors and their equivalent element: phlegm and lungs
air
The four humors and their equivalent element: black bile and spleen
fire
The four humors and their equivalent element: yellow bile and gallbladder
water
Evolution of phlebotomy:
blood letting was performed by barber-surgeons as part of the treatment for some illness
middle ages
Evolution of phlebotomy:
phlebotomy was treated as a major therapy
17th and 18th centuries
- alternative medicine
- application of special heated suction cups on the patient’s skin
- incision using a fleam or lancet
cupping
- known as Hirudotherapy
- uses leeches for bloodletting
- used for microsurgical replantation
leeching
Scientific term for medicinal leech?
Hirudo medicinalis
What is present in the saliva of leeches that acts as an anticoagulant?
Hirudin
3 main goals of phlebotomy
- for diagnosis and treatment using blood samples
- for transfusion, to remove blood from donor
- for removal of blood for polycythemia or therapeutic purposes
Two main methods of phlebotomy?
- venipuncture
- capillary puncture
The method of collection of blood through the vein using a needle
venipuncture
Method of collecting blood by puncturing skin using a lancet?
capillary puncture
Which hand is punctured with a lancet in capillary puncture method?
The non-dominant hand
Which fingers are best to puncture with a lancet during capillary puncture?
Middle or ring fingers (lateral)