Imaging & Procedures Flashcards Preview

ENT > Imaging & Procedures > Flashcards

Flashcards in Imaging & Procedures Deck (62)
Loading flashcards...
1

Purposes of X-ray

Detect sinusitis
Detect fluid in the sinuses
Detect polyps

2

Indications of X-ray

Pain/pressure in the face
Clinical symptoms need supportive evidence

3

Maxillary Sinus X-ray

Frontal view of the maxillary sinuses, orbits, nasal structures, zygomas
Permits direct comparison of sides

4

Waters View

Posterior/anterior radiographic view of the skull with an angle of 37 degrees from the plane of the film to show the orbits and maxillary sinuses

5

What disease has the thumbprint sign?

Epiglottitis

6

What disease has the steeple sign?

Croup

7

What is the imaging of choice for retropharyngeal abscess

CT of the neck

8

CT is preferable to MRI in these situations

Larynx for neck nodes
Tumor volume
Cartilage sclerosis & destruction

9

CT of Sinuses Useful for:

Further info about tumors
Provide info about obstruction
Detect fluid in sinuses
Detect if membranes are thickened
Assist with diagnosis

10

Best Diagnostic Tool for Epiglottitis

Lateral Neck X-ray

11

Best Diagnostic Tool for Retropharyngeal Abscess

CT

12

Best Diagnostic Tool for Sinusitis

X-ray or CT

13

Best Diagnostic Tool for Trauma

CT

14

Best Diagnostic Tool for Ludwig's Angina

CT

15

Best Diagnostic Tool for Peri-tonsillar Abscess

CT

16

Best Diagnostic Tool for Tumors

MRI

17

Most Radiation exposure between x-ray, CT, or MRI

CT

18

Indications for a Throat Swab or Culture

Sore throat
Fever of unknown origin
Chronic carriers with recurrent infection

19

Indications for a Nose Swab or Culture

Nasal or sinus infections
Carriers of pathogenic bacteria

20

When should cultures be performed?

Before antibiotic therapy is initiated

21

Main bugs on throat cultures

Bordatella pertussis
Streptococci (esp. B-hemolytic)
Meningococci
Corynebacterium diptheriae

22

Most common bugs on nasal swab

Staph aureus
MRSA

23

Most common bugs on a nasopharyngeal swab

H-flu
RSV
Influenza
Pertussis

24

How to perform a nasal swab

Raise tip of nose
Insert swab into nare
Rotate swab
Remove swab
Place in appropriate tube

25

How to perform a nasopharyngeal swab

Raise tip of nose
Insert FLEXIBLE swab into nare medially
Gently move to posterior pharynx
Rotate swab
Place in appropriate tube

26

Where do you swab for a rapid strep?

Posterior pharynx

27

Cerumen Disimpaction

Removal of cerumen via an ear curette

28

Treatment of Epistaxis

Topical vasoconstrictor/analgesic
Direct pressure
Silver nitrate cautery

29

Topical Vasoconstrictors

Inhaled Afrin
Cotton balls soaked in Epi & Lidocaine

30

How Long to Apply Direct Pressure?

20 minutes