UAMS: HEMATOLOGY LAB PRACTICAL
REVIEW
what are the characteristics of an adequately prepared peripheral blood smear? -
Correct Answers -The smear should:
be 2/3 the length of the slide
feather shaped
take the width of the slide, but the lateral edges should be visible
no ridges lines or holes
what is the time frame that a peripheral blood smear should be made? - Correct
Answers -less than 5 hours; 3-4 hours preferred; 2-3 hours are ideal
what are the characteristics of red blood cells in a peripheral blood smear made from an
EDTA tube that remained at room temperature for more than 5 hours? - Correct
Answers -RBCs can appear to be echinocytes
what are the characteristics of white blood cells in a peripheral blood smear made from
an EDTA tube that remained at room temperature for more than 5 hours? - Correct
Answers -WBCs cab develop denatured/necrobiotic nuclei and vacuoles in the
cytoplasm.
what are the characteristics of platelets in a peripheral blood smear made from an
EDTA tube that remained at room temperature for more than 5 hours? - Correct
Answers -platelets can clump or agglutinate
, what could cause this unacceptable peripheral smear? 1 - Correct Answers
-chipped/rough edge on spreader slide
what could cause this unacceptable peripheral smear? 2 - Correct Answers -jerky
motion when sliding the spreader slide
what could cause this unacceptable peripheral smear? 3 - Correct Answers -pointed
spread, slide pushed too quickly
REVIEW
what are the characteristics of an adequately prepared peripheral blood smear? -
Correct Answers -The smear should:
be 2/3 the length of the slide
feather shaped
take the width of the slide, but the lateral edges should be visible
no ridges lines or holes
what is the time frame that a peripheral blood smear should be made? - Correct
Answers -less than 5 hours; 3-4 hours preferred; 2-3 hours are ideal
what are the characteristics of red blood cells in a peripheral blood smear made from an
EDTA tube that remained at room temperature for more than 5 hours? - Correct
Answers -RBCs can appear to be echinocytes
what are the characteristics of white blood cells in a peripheral blood smear made from
an EDTA tube that remained at room temperature for more than 5 hours? - Correct
Answers -WBCs cab develop denatured/necrobiotic nuclei and vacuoles in the
cytoplasm.
what are the characteristics of platelets in a peripheral blood smear made from an
EDTA tube that remained at room temperature for more than 5 hours? - Correct
Answers -platelets can clump or agglutinate
, what could cause this unacceptable peripheral smear? 1 - Correct Answers
-chipped/rough edge on spreader slide
what could cause this unacceptable peripheral smear? 2 - Correct Answers -jerky
motion when sliding the spreader slide
what could cause this unacceptable peripheral smear? 3 - Correct Answers -pointed
spread, slide pushed too quickly
