infection

Question 1

sublingual space borders

Answer 1

anterior-lingual mandible
posterior- submandibular space
superior- oral mucosa
inferior-mylohyoid

Question 2

submental space borders

Answer 2

anterior-inferior border of mandible
posterior-hyoid
superior-mylohyoid
lateral-anterior digastric

Question 3

Pterygomandibular space borders

Answer 3

anterior-buccal space
posterior-parotid
lateral-ramus of mandible
medial-media pterygoid

Question 4

masseteric space borders

Answer 4

anterior-buccal space
posterior-parotid gland
lateral-masseter
medial-mandible
Superior-zygomatic arch

Question 5

Lateral pharyngeal space boarders

Answer 5

anterior-superior constrictors
posterior-carotid sheath-
lateral-medial pterygoid
medial pharyngeal constrictors

Question 6

retropharyngeal space boarders

Answer 6

anterior-constrictors
posterior- alar fascia
superior- skull of base
goes to about c6-t4

Question 7

submandibular space boarders

Answer 7

anterior-anterior digastric
posterior- posterior digastric
superior inferior or medial surface of mandible

Question 8

coverage for MRSA?

Answer 8

Bactrim(tmp/smx) or clindamycin

Question 9

What is the treatment for orbital abscess?

Answer 9

-immediate drainage in all cases
-if it goes intracranial cover anaerobes
-if drainage just use transconj

Question 10

What nerves are in the cavernous sinus?

Answer 10

3,4,6,V1,v2

Question 11

What is the earliest sign of cavernous sinus thrombosis?

Answer 11

lateral gaze palsy (LR 6).

Question 12

how does danger triangle spread?

Answer 12

via valveless veins. from facial vein>angular vein>ophthalmic vein

Question 13

Necrotizing fascitis infection patterns?

Answer 13

Type 1 mixed aerobic and aneorbixc
Type 2 or strept pyogenes(kids)
Type 3 MRSA.
Type 4 is clostridial
type 5 is klebsiella/.

Question 14

Common anaerobic oral bacteria?

Answer 14

Peptostreptococci
bacteroides
provetella
actinomyces

Question 15

Facultative bacteria that start the infection

Answer 15

staph
strep
e. coli

Question 16

Major pathogens of the oral cavity

Answer 16

Viridans, streptococcus milleri. peptostreptococcus, prevotella.

Question 17

clindamycin MOA

Answer 17

50S subunite(inhibit protein synthesis)
good anaerobinc

Question 18

How do you manage C diff?

Answer 18

Stop abx. hydration and electrolyte replacement.
Metronidazola or vancomycin abx

Question 19

antibiotic prophylaxis

Answer 19

amoxicillin 2g

if allergic azythromycin 500 mg.

Question 20

ciprofloxacin moa

Answer 20

Fluoroquinolones: inhibit dna replication.
risk of chrondrotoxicity. worsen QT prolongation.

Question 21

necrotizing fasciitis abx protocol

Answer 21

zosyn, vanc, clinda

Question 22

cavernous sinus thrombosis abx protocol

Answer 22

ceftriaxone. vanc, metro

Question 23

What does left shift in WBC mean?

Answer 23

presence of more immature white blood cells into the bloodstream.

Question 24

Give 30 ml/kg of IV fluid bolus in ED

Question 25

Metronidazol MOA

Answer 25

DNA strand breakage.

Question 26

tetracycline moa

Answer 26

30s inhibit