Phlebotomy Medca Exam 36 Questions with Verified Answers
Color coding of needles indicates - CORRECT ANSWER Guage
What does a blood cell count
... [Show More] require - CORRECT ANSWER Whole blood collected in a purple top tube
The preferred anticoagulant for the collection of whole blood for STAT situations in a clinical laboratory - CORRECT ANSWER Herapin
main cells of the immune system - CORRECT ANSWER White blood cells
Plasma makes up what percent of the blood tissue - CORRECT ANSWER 55%
Normal pulse rate of a 9 year old - CORRECT ANSWER 75-110 BPM
When is a diastolic heart sound heard - CORRECT ANSWER when the heart relaxes
What are the formation of blood cells that start in the bone marrow - CORRECT ANSWER Stem cells
True or False
White blood cells contain chromosomes - CORRECT ANSWER True
What are developing red blood cells also called - CORRECT ANSWER Reticulocytes
How many red blood cells are produced per second - CORRECT ANSWER About 2 million
Amount of time it takes for red blood cells to mature - CORRECT ANSWER 7 days
Most numerous blood cells in the body - CORRECT ANSWER Red blood cells
When pH level is lowered it makes the blood more..? - CORRECT ANSWER Acidic
True or False
The Monoject Monoletter is a safety device for capillary blood collection - CORRECT ANSWER True
When performing an arterial puncture, the artery should be punctured at what degree angle? - CORRECT ANSWER 90 degrees
Where is blood pressure measured? - CORRECT ANSWER inside the elbow
True or False
Red blood cells contain a nucleus - CORRECT ANSWER False
Red blood cells are the bodys major way of delivering what to the bodys tissues? - CORRECT ANSWER Oxygen
What happens as the circulating blood moves away from the heart? - CORRECT ANSWER The blood pressure decreases
For newborns the penetration depth of lancets for blood collection must be less than..? - CORRECT ANSWER 2.0 mm
To chill a blood specimen as it is being transported the health care worker should carry the specimen in what? - CORRECT ANSWER Icy water
A blood donor candidate must weigh at least what amount - CORRECT ANSWER 110 pounds
What gauge needle is used for blood donation - CORRECT ANSWER 16 gauge
Prolonged tourniquet application can lead to - CORRECT ANSWER tissue and nerve damage
A tourniquet should not be on a patient for more than..? - CORRECT ANSWER 2 minutes
Where in the body is the blood made - CORRECT ANSWER bone marrow
Blood makes up what percent of the body weight - CORRECT ANSWER 8%
Process of the removal of old and defective red blood cells - CORRECT ANSWER Eryptosis
Bradycardia is when pulse drops below..? - CORRECT ANSWER 60 BPM
How many layers do veins have - CORRECT ANSWER Two
How many layers do arteries have - CORRECT ANSWER Three
Where are reserve platelets stored? - CORRECT ANSWER In the spleen
Small vessels located in the liver, spleen, & bone marrow - CORRECT ANSWER Sinusoids
White blood cells that are responsible for allergic reactions - CORRECT ANSWER Baspohils
If blood specimen has a separation device, how many times should it be centrifuged - CORRECT ANSWER Once [Show Less]
