CBC and Differential Toubleshooting Flashcards
1
Q
Smear excessively blue or dark
A
Too much stain
Too little wash
Too thick
Too alkaline
2
Q
Smear excessively pink or light
A
Too little stain
Too much wash
Too acidic
3
Q
Presence of precipitate
A
Unclean slide
Drying during staining process
Inadequate Filtration of stain
4
Q
Holes in slide
A
Lipids or dirty slide
5
Q
No platelets seen
A
Platelets clumped at feathered edge, inadequate buffering, pH too acidic
6
Q
platelet satelitosis due to EDTA
A
Platelets surrounding
7
Q
Slow drying, increased humidity
Blowing on slide to dry
Blood more than 5 hours old
A
Crenated RBCs
8
Q
Reading too far into smear
A
RBCs appear small, stacked, and without central pallor
WBCs distorted
