Can you identify the problem in peripheral blood smears (below)?

See how the echinocytosis (crenation) obscures normal erythrocyte morphology? ECHINO1FP.jpg (69921 bytes)   Spherocytes wpe6.jpg (2083 bytes)
Smear made from stored blood Fresh blood smear wpe13.jpg (4046 bytes)   Polychromatophilic RBC wpeC.jpg (3070 bytes)
Schistocytes wpeA.jpg (3458 bytes)   Eccentrocyte wpeB.jpg (3135 bytes)
Heinz bodies HB1FP.jpg (67413 bytes)   Microcytic hypochromic RBCs wpe6.jpg (3802 bytes)
Babesia wpeA.jpg (3473 bytes)     RETURN TO CASE DISCUSSION