Erythrocyte Distribution

Question 1

Agglutination

Answer 1

Cold agglutinin disease (CAD), Clotted sample
Elevated MCHC
What to do: Incubate @ 37°C for 15 min- Rerun
Correction of MCHC signals CAD- Recollect sample if results do not correct

Question 2

Rouleaux

Answer 2

Plasma cell disorders

Beware: Rouleux can be seen in the thick portion of smears- Do NOT report rouleaux unless you are in a “good” area