Orbital cellulitis

Question 1

Pre septal cellulitis / periorbital only involves…?

Answer 1

the eyelids

Question 2

presentation of pre septal cellulitis

Answer 2

both eyes are swollen and tender

Question 3

treatment of pre septal cellulitis

Answer 3

IV AB

Question 4

Pathogens causing post septal cellulitis (2)

Answer 4

H.influenzae and strep / staphycoccus

Question 5

PSC associated with?

Answer 5

URTI or undiagnosed sinusitis

Question 6

Pupillary defect associated with PSC

Answer 6

RAPD - due to CN 2 compression

Question 7

Complications of PSC (4)

Answer 7

Sepsis
Meningitis
Optic nerve damage
Cavernous sinus thrombosis

Question 8

Orbital cellulitis pathology

Answer 8

infection / inflammation of orbital soft tissue with ocular dysfunction

Question 9

Important HPC in peri / orbital cellulitis

Answer 9

Recent sinus infection

Recent trauma?

Question 10

Examination in peri orbital / orbital cellulitis

Answer 10

full ophthalmic exam

Question 11

Blood tests in peri orbital / orbital cellulitis

Answer 11

FBC
WBC
CRP
consider blood culture

Question 12

bedside test in peri orbital / orbital cellulitis

Answer 12

swabs

Question 13

imaging in in peri orbital / orbital cellulitis

Answer 13

CT sinus and orbits