medical laboratory ACTUAL UPDATED
QUESTIONS AND CORRECT ANSWERS
3 ways blood can be obtained - CORRECT ANSWERS✅✅skin puncture, venipuncture, and
arterial
why is it important for you to determine your legal responsibilities involving the obtaining of
blood - CORRECT ANSWERS✅✅in some states its not legal to obtain blood without a
liscence
3 points you must observe to follow the aseptic technique - CORRECT ANSWERS✅✅-skin
must be cleaned properly
-the lancet should be sterile
-the puncture site should be covered with sterile gauze
5 points that must be checked before a finger is punctured - CORRECT ANSWERS✅✅-
avoid fingers with edema, scars,rashes
-make sure the skin is warm and pink
-do not use pinkie, index finger or thumb
-observe for cyanosis
-examine grain of lines on finger
how deep should the skin puncture be - CORRECT ANSWERS✅✅2 to 4 millimeters
the puncture should be made... - CORRECT ANSWERS✅✅across the grain of lines on the
finger or at a right angle
why is the first drop of blood removed - CORRECT ANSWERS✅✅because its
contaminated with alcohol
how long should you stay with the patient after preforming the finger puncture - CORRECT
ANSWERS✅✅until the blood stops flowing
, why is it important to handle any blood sample with extreme care - CORRECT
ANSWERS✅✅because if spilt it could carry disease
how should you dispose of the lancet - CORRECT ANSWERS✅✅in the sharps container
hematocrit - CORRECT ANSWERS✅✅a blood test that measures the volume of blood cells
red bloods cells carry... - CORRECT ANSWERS✅✅oxygen from the lungs to body cells
and carbon dioxide from the body cells to the lungs
why is microhematocrit a popular method for determining hematocrit? - CORRECT
ANSWERS✅✅requires less blood and is faster
what are the 3 layers are the blood seperated into - CORRECT ANSWERS✅✅RBC's, buffy
coats, and plasma
why are the microhematocrit capillary tubes line with anticoagulant - CORRECT
ANSWERS✅✅to prevent the blood from clotting
why is the empty end of the capillary tube sealed with special plastic sealing clay -
CORRECT ANSWERS✅✅keeps the blood from flowing out
normal microhematocrit value - CORRECT ANSWERS✅✅adult women: 36-45
adult men: 40-55
newborns: 51-61
children 6 years old: 34-42
what does a low hematocrit reading indicate - CORRECT ANSWERS✅✅anemia
what does a high hematocrit reading indicate - CORRECT ANSWERS✅✅polycythemia
QUESTIONS AND CORRECT ANSWERS
3 ways blood can be obtained - CORRECT ANSWERS✅✅skin puncture, venipuncture, and
arterial
why is it important for you to determine your legal responsibilities involving the obtaining of
blood - CORRECT ANSWERS✅✅in some states its not legal to obtain blood without a
liscence
3 points you must observe to follow the aseptic technique - CORRECT ANSWERS✅✅-skin
must be cleaned properly
-the lancet should be sterile
-the puncture site should be covered with sterile gauze
5 points that must be checked before a finger is punctured - CORRECT ANSWERS✅✅-
avoid fingers with edema, scars,rashes
-make sure the skin is warm and pink
-do not use pinkie, index finger or thumb
-observe for cyanosis
-examine grain of lines on finger
how deep should the skin puncture be - CORRECT ANSWERS✅✅2 to 4 millimeters
the puncture should be made... - CORRECT ANSWERS✅✅across the grain of lines on the
finger or at a right angle
why is the first drop of blood removed - CORRECT ANSWERS✅✅because its
contaminated with alcohol
how long should you stay with the patient after preforming the finger puncture - CORRECT
ANSWERS✅✅until the blood stops flowing
, why is it important to handle any blood sample with extreme care - CORRECT
ANSWERS✅✅because if spilt it could carry disease
how should you dispose of the lancet - CORRECT ANSWERS✅✅in the sharps container
hematocrit - CORRECT ANSWERS✅✅a blood test that measures the volume of blood cells
red bloods cells carry... - CORRECT ANSWERS✅✅oxygen from the lungs to body cells
and carbon dioxide from the body cells to the lungs
why is microhematocrit a popular method for determining hematocrit? - CORRECT
ANSWERS✅✅requires less blood and is faster
what are the 3 layers are the blood seperated into - CORRECT ANSWERS✅✅RBC's, buffy
coats, and plasma
why are the microhematocrit capillary tubes line with anticoagulant - CORRECT
ANSWERS✅✅to prevent the blood from clotting
why is the empty end of the capillary tube sealed with special plastic sealing clay -
CORRECT ANSWERS✅✅keeps the blood from flowing out
normal microhematocrit value - CORRECT ANSWERS✅✅adult women: 36-45
adult men: 40-55
newborns: 51-61
children 6 years old: 34-42
what does a low hematocrit reading indicate - CORRECT ANSWERS✅✅anemia
what does a high hematocrit reading indicate - CORRECT ANSWERS✅✅polycythemia
