HESI Mock Exam: Dental Hygiene questions with
verified answers
What is myxedema? Ans✓✓ -Hypothyroidism in adults
According to the American Heart Association guideline, which of the following
heart conditions does NOT require premedication?
A.) Incompletely repaired cyanotic congenital heart disease
B.) History of infective endocarditis
C.) Rheumatic heart disease
D.) Artificial heart valve Ans✓✓ -C.) Rheumatic heart disease
Which of the following is NOT correct regarding furcations?
A.) They can be detected on anterior teeth
B.) They can be detected on the posterior teeth
C.) They can be visible when recession is present
D.) They can present a challenge to the clinician during instrumentation Ans✓✓ -
A.) They can be detected on anterior teeth
What description is related to the patient who had a spinal injury at C2 and C3
level? Ans✓✓ -Patient has limited head and neck movement and patient may
depend on a ventilator for respiration
Injury at the C5 level Ans✓✓ -Will allow the patient to have shoulder control and
perform daily tasks of eating.
,Injury at the C7 level Ans✓✓ -Will allow the patient to have wrist and elbow
movements as well.
Injury below the T (thoracic) level Ans✓✓ -Will allow the normal motor function
of the upper body.
Which type of hypersensitivity has the MOST delayed response? Ans✓✓ -Type IV
The clinician changed the 8 inches PID to a 16 inches PID. How will the beam
intensity change? Ans✓✓ -1/4 times stronger
To determine if the client has calculus deposits on the proximal surfaces of the
posterior teeth, which instrument with which stroke should be used? Ans✓✓ -
11/12 explorer, fluid stroke
T-test Ans✓✓ -compares the means (averages) of two different studies
ANOVA (analysis of variance) Ans✓✓ -compares the means of three or more
studies
Chi-square test Ans✓✓ -measures the difference between the observed and
expected values, not means
P-value Ans✓✓ -measures result that occurred by chance during an experiment
,Incisors are used for Ans✓✓ -Biting and cutting
How many bones are there in the middle ear? Ans✓✓ -3
Malleus
Incus
Stapes
How many cranial bones are there? Ans✓✓ -8
Frontal
Parietal (2)
Occipital
Temporal (2)
Sphenoid
Ethmoid
How many facial bones are there? Ans✓✓ -14
"My Mandible Chews Nine Very Large Zucchini Pizzas"
Maxillae (2)
Mandible
Conchae (2)
, Nasal (2)
Vomer
Lacrimal (2)
Zygomatic (2)
Palatine (2)
With amelogenesis imperfecta, the enamel may have Ans✓✓ -- Abnormally small
teeth
- Yellow or brown discoloration
- Pitting
- Sensitivity
- Open bite
- Prone to breaking
What is the normal Prothrombin time (PT)? Ans✓✓ -11-16 seconds
Which of the following is NOT a function of a mirror?
A.) Soft tissue retraction
B.) Indirect vision
C.) Direct illumination
D.) Transillumination Ans✓✓ -C.) Direct illumination
Blood pressure of 142/92 mmHg is categorized as Ans✓✓ -Hypertension stage 2
verified answers
What is myxedema? Ans✓✓ -Hypothyroidism in adults
According to the American Heart Association guideline, which of the following
heart conditions does NOT require premedication?
A.) Incompletely repaired cyanotic congenital heart disease
B.) History of infective endocarditis
C.) Rheumatic heart disease
D.) Artificial heart valve Ans✓✓ -C.) Rheumatic heart disease
Which of the following is NOT correct regarding furcations?
A.) They can be detected on anterior teeth
B.) They can be detected on the posterior teeth
C.) They can be visible when recession is present
D.) They can present a challenge to the clinician during instrumentation Ans✓✓ -
A.) They can be detected on anterior teeth
What description is related to the patient who had a spinal injury at C2 and C3
level? Ans✓✓ -Patient has limited head and neck movement and patient may
depend on a ventilator for respiration
Injury at the C5 level Ans✓✓ -Will allow the patient to have shoulder control and
perform daily tasks of eating.
,Injury at the C7 level Ans✓✓ -Will allow the patient to have wrist and elbow
movements as well.
Injury below the T (thoracic) level Ans✓✓ -Will allow the normal motor function
of the upper body.
Which type of hypersensitivity has the MOST delayed response? Ans✓✓ -Type IV
The clinician changed the 8 inches PID to a 16 inches PID. How will the beam
intensity change? Ans✓✓ -1/4 times stronger
To determine if the client has calculus deposits on the proximal surfaces of the
posterior teeth, which instrument with which stroke should be used? Ans✓✓ -
11/12 explorer, fluid stroke
T-test Ans✓✓ -compares the means (averages) of two different studies
ANOVA (analysis of variance) Ans✓✓ -compares the means of three or more
studies
Chi-square test Ans✓✓ -measures the difference between the observed and
expected values, not means
P-value Ans✓✓ -measures result that occurred by chance during an experiment
,Incisors are used for Ans✓✓ -Biting and cutting
How many bones are there in the middle ear? Ans✓✓ -3
Malleus
Incus
Stapes
How many cranial bones are there? Ans✓✓ -8
Frontal
Parietal (2)
Occipital
Temporal (2)
Sphenoid
Ethmoid
How many facial bones are there? Ans✓✓ -14
"My Mandible Chews Nine Very Large Zucchini Pizzas"
Maxillae (2)
Mandible
Conchae (2)
, Nasal (2)
Vomer
Lacrimal (2)
Zygomatic (2)
Palatine (2)
With amelogenesis imperfecta, the enamel may have Ans✓✓ -- Abnormally small
teeth
- Yellow or brown discoloration
- Pitting
- Sensitivity
- Open bite
- Prone to breaking
What is the normal Prothrombin time (PT)? Ans✓✓ -11-16 seconds
Which of the following is NOT a function of a mirror?
A.) Soft tissue retraction
B.) Indirect vision
C.) Direct illumination
D.) Transillumination Ans✓✓ -C.) Direct illumination
Blood pressure of 142/92 mmHg is categorized as Ans✓✓ -Hypertension stage 2
