Ear cytology

Question 1

how to view otodectes

Answer 1

drop of mineral oil on slide
may use cover slip
view immediately on 4-10x power

Question 2

otitis externa

Answer 2

conformation: floppy ears, excess hair, excess glandular tissue
increased moisture increases risk: bathing, swimming, humidity
blockage: polyps, tumors, foreign bodies
primary cause: allergies, dermatitis, food sensitivities, parasites
secondary infections: bacteria, yeast (tx: antifungal, steroid)
CS: head shaking, pruritis, odor, discharge, hematoma, pain, head tilt

Question 3

ear swab and cytology

Answer 3

sample before ear cleaning
roll sample onto slide
fix
diff quick stain
dry
evaluate on 100x (oil) and always quantify

Question 4

microscopy

Answer 4

organisms: mites (otodectes), bacteria (ex: rods, cocci)
yeast: (malassezia)
cells: leukocytes (inflammation/infection), erythrocytes (trauma), epithelial cells