AAB MT Exam Hem Lab Methods |\ |\ |\ |\ |\ |\
QUESTIONS WITH ANSWERS |\ |\
What type of specimen is used for hematology testing? -
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔EDTA |\ |\
What type of specimen is used for coagulation testing? -
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔3.2% citrated plasma|\ |\ |\ |\
When should a 3.2% citrated plasma be rejected? -
|\ |\ |\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔If the specimen is clotted,
|\ |\ |\ |\ |\ |\ |\
hemolyzed or QNS. |\ |\
How is platelet poor plasma obtained from a 3.2 citrated
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
plasma specimen? - CORRECT ANSWERS ✔✔By
|\ |\ |\ |\ |\ |\
centrifuging the specimen. |\ |\
In a coagulation specimen, what is the ratio between
|\ |\ |\ |\ |\ |\ |\ |\ |\
anticoagulant and whole blood? - CORRECT ANSWERS |\ |\ |\ |\ |\ |\ |\
✔✔1:9 ratio |\
In a coagulation specimen, what is the ratio between
|\ |\ |\ |\ |\ |\ |\ |\ |\
whole blood and anticoagulant? - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\
✔✔9:1 ratio |\
, What is the formula for the Red Blood Cell (RBC) Count? -
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔(Cells counted X Dilution X 10) /
|\ |\ |\ |\ |\ |\ |\ |\ |\
Number of square millimeters counted|\ |\ |\ |\
What is a common source of errors for the RBC Count? -
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔Cold agglutinins (due to cold|\ |\ |\ |\ |\ |\ |\
antibodies present). |\
Why is platelet poor plasma essential for coagulation
|\ |\ |\ |\ |\ |\ |\ |\
testing? - CORRECT ANSWERS ✔✔Platelets initiates the
|\ |\ |\ |\ |\ |\ |\
coagulation cascade (results in shorten result times). |\ |\ |\ |\ |\ |\
Cold auto-antibodies cases what errors in the CBC test? -
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔A falsely decreased HCT and RBC,
|\ |\ |\ |\ |\ |\ |\
plus a falsely elevated MCV and MCHC (greater than 37).
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
If a patient has a cold auto-antibody, what can be done to
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
obtain a correct CBC? - CORRECT ANSWERS ✔✔Incubate
|\ |\ |\ |\ |\ |\ |\ |\ |\
specimen at 37 C, reanalyze specimen immediately after
|\ |\ |\ |\ |\ |\ |\ |\
incubation, and immediately make the peripheral smear. |\ |\ |\ |\ |\ |\
What is the method for performing a hemoglobin
|\ |\ |\ |\ |\ |\ |\ |\
concentration? - CORRECT ANSWERS |\ |\ |\ |\
✔✔Cyanmethemoglobin method |\
QUESTIONS WITH ANSWERS |\ |\
What type of specimen is used for hematology testing? -
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔EDTA |\ |\
What type of specimen is used for coagulation testing? -
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔3.2% citrated plasma|\ |\ |\ |\
When should a 3.2% citrated plasma be rejected? -
|\ |\ |\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔If the specimen is clotted,
|\ |\ |\ |\ |\ |\ |\
hemolyzed or QNS. |\ |\
How is platelet poor plasma obtained from a 3.2 citrated
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
plasma specimen? - CORRECT ANSWERS ✔✔By
|\ |\ |\ |\ |\ |\
centrifuging the specimen. |\ |\
In a coagulation specimen, what is the ratio between
|\ |\ |\ |\ |\ |\ |\ |\ |\
anticoagulant and whole blood? - CORRECT ANSWERS |\ |\ |\ |\ |\ |\ |\
✔✔1:9 ratio |\
In a coagulation specimen, what is the ratio between
|\ |\ |\ |\ |\ |\ |\ |\ |\
whole blood and anticoagulant? - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\
✔✔9:1 ratio |\
, What is the formula for the Red Blood Cell (RBC) Count? -
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔(Cells counted X Dilution X 10) /
|\ |\ |\ |\ |\ |\ |\ |\ |\
Number of square millimeters counted|\ |\ |\ |\
What is a common source of errors for the RBC Count? -
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔Cold agglutinins (due to cold|\ |\ |\ |\ |\ |\ |\
antibodies present). |\
Why is platelet poor plasma essential for coagulation
|\ |\ |\ |\ |\ |\ |\ |\
testing? - CORRECT ANSWERS ✔✔Platelets initiates the
|\ |\ |\ |\ |\ |\ |\
coagulation cascade (results in shorten result times). |\ |\ |\ |\ |\ |\
Cold auto-antibodies cases what errors in the CBC test? -
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔A falsely decreased HCT and RBC,
|\ |\ |\ |\ |\ |\ |\
plus a falsely elevated MCV and MCHC (greater than 37).
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
If a patient has a cold auto-antibody, what can be done to
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
obtain a correct CBC? - CORRECT ANSWERS ✔✔Incubate
|\ |\ |\ |\ |\ |\ |\ |\ |\
specimen at 37 C, reanalyze specimen immediately after
|\ |\ |\ |\ |\ |\ |\ |\
incubation, and immediately make the peripheral smear. |\ |\ |\ |\ |\ |\
What is the method for performing a hemoglobin
|\ |\ |\ |\ |\ |\ |\ |\
concentration? - CORRECT ANSWERS |\ |\ |\ |\
✔✔Cyanmethemoglobin method |\
