Phlebotomy Anatomy and Physiology Flashcards
6 cards from real Phlebotomy Test practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Phlebotomy Anatomy and Physiology flashcards as text
What is the normal pH range of human blood?
Answer: 7.35–7.45
Normal blood pH is maintained between 7.35 and 7.45; values below this indicate acidosis and values above indicate alkalosis.
Capillary blood specimens are most often collected from which site in adult patients?
Answer: Fingertip (finger stick)
In adults, the capillary puncture is most commonly performed on the fleshy tip of the third or fourth finger (ring or middle finger).
Which component of blood is responsible for the immune response and fighting infection?
Answer: Leukocytes
Leukocytes (white blood cells) are the immune cells of the blood that identify and destroy pathogens, foreign substances, and abnormal cells.
What term describes the collapse or rolling of a vein during venipuncture?
Answer: Vein collapse
Vein collapse occurs when too much suction is applied, causing the vein walls to cave in and obstruct blood flow into the needle.
The median nerve runs near which structure frequently accessed during venipuncture?
Answer: Basilic vein
The median nerve lies close to the basilic vein in the antecubital fossa, which is why this vein is the least preferred draw site.
Which blood type is considered the universal donor for red blood cell transfusions?
Answer: Type O negative
Type O negative blood lacks A, B, and Rh antigens on red blood cells, making it compatible with all other blood types in emergency transfusions.