HESI Case Study Twenty

What equipment is used in panoramic imaging to lower the radiation dose for the pt?

A. Cassette

B. Screen film

C. Intensifying screen

D. Lead apron/thyroid collar

C. Intensifying screen

Which organ does cystic fibrosis primarily effect?

A. Lung

B. Bladder

C. Heart

D. Kindey

A. Lung

Which structure is a diagonal radiolucency superimposed over the posterior ramus of the mandible?

A. External auditory meatus

B. Hamular process

C. Soft palate

D. Nasopharyngeal air space

D. Nasopharyngeal air space

Cystic fibrosis is caused by a recessive gene in chromosome 6. Cystic fibrosis is characterized by thick excretions in the airways and digestive ducts.

A. Both are true

B. The first is false, second is true

C. The first is true, second is false

D. Both are false

B. The first is false, second is true

Which tooth is most linguoverted?

A. #20

B. #19

C. #5

D. #29

D. #29

Which nutrient deficiency results from cystic fibrosis?

A. Water

B. Fat

C. Protein

D. Carbohydrate

B. Fat

Which Angle's Classification of occlusion does this pt exhibit?

A. Class III

B. Class II, Division 1

C. Class I

D. Class II, Division 2

C. Class I

The periapical regions of #21, 22, 27 and 28 reveal open apices. Which is the probable cause for this radiographic appearance?

A. Periapical abscess

B. Normal apical structure for immature developing teeth

C. Root resorption

D. Pulpitis

B. Normal apical structure for immature developing teeth

After an extended time in semi-reclined position, the pt sits up quickly. He feels dizzy and loses consciousness for a brief moment. Which condition did the pt experience?

A. Petit mal seizure

B. Syncope

C. Hyperventilation

D. Postural hypotension

D. Postural hypotension

Which is the treatment consideration for a pt with cystic fibrosis?

A. Turn down background music

B. Treat in semi-supine position

C. Schedule early morning appointments

D. Allow frequent breaks

B. Treat in semi-supine position

What is a contraindication for treating this pt?

A. Ultrasonic scaler

B. Saliva substitues

C. Local anesthesia agents

D. Chlorhexidine rinse

A. Ultrasonic scaler

Which vitamin's need is increased with cystic fibrosis?

A. C

B. B6

C. B1

D. A

D. A

The mandibular anterior teeth appear to be wider and larger on the panoramic radiograph. Which technique of error may have caused this appearance?

A. Teeth placed anterior to focal trough

B. Frankfort plane tipped up

C. Pt movement

D. Teeth placed posterior to focal trough

D. Teeth placed posterior to focal trough

Before the pt started orthodontics, which malocclusion is evident on the anteriors?

A. Edge-to-edge

B. Corssbite

C. Midline deviation

D. Overbite

C. Midline deviation

Which toothbrushing method is recommended for pts in orthodontics?

A. Charter

B. Bass

C. Stillman

D. Fones

A. Charter