Question 1

Deep sleep is associated with _.

Accepted Answer

A)   theta waves
B)   delta waves
C)   beta waves
D)   alpha wavesE) B) and C)
F) C) and D) B

Question 2

EEG studies are valuable because .

Accepted Answer

A)   they are relatively easy to record and analyze
B)   they can reveal many kinds of brain abnormalities
C)   they are noninvasive
D)   they are noninvasive, they can reveal many kinds of brain abnormalities, and they are relatively easy to record and analyzeE) All of the above
F) A) and B)

Question 3

An EEG showing either very rapid or extremely slow frequency brain waves may occur when an individual is .

Accepted Answer

A)   alert and speaking
B)   unconscious
C)   moving about
D)   drowsyE) A) and B)
F) B) and D)

Question 4

Brain waves of this type predominate when an individual is attentive and alert.

Accepted Answer

A)   delta
B)   beta
C)   theta
D)   alphaE) A) and B)
F) A) and C)

Question 5

Which of the following EEG waves has the lowest frequency?

Accepted Answer

A)   beta
B)   delta
C)   theta
D)   alphaE) A) and C)
F) A) and B)

Question 6

This type of brain wave is normal in children, but abnormal in adults.

Accepted Answer

A)   delta
B)   theta
C)   beta
D)   alphaE) A) and C)
F) A) and B)

Question 7

Alpha block, the suppression of alpha waves that can be seen in the EEG, occurs when .

Accepted Answer

A)   one goes from a drowsy state into deep sleep
B)   an individual is relaxed, with eyes closed
C)   a person is in a coma
D)   you open your eyes, after having relaxed with eyes closedE) All of the above
F) A) and B)

Question 8

A physician may order an EEG study if the patient is suspected of having .

Accepted Answer

A)   a possible fracture of the frontal bone
B)   brain damage resulting from a deep cut in the scalp
C)   a broken nose
D)   a tumorE) A) and B)
F) B) and C)

Question 9

Respiratory alkalosis results in EEG waves _.

Accepted Answer

A)   in the theta range
B)   that are slower than delta waves
C)   that resemble an epileptic seizure
D)   that are flatE) A) and B)
F) A) and C)

Question 10

An alert individual has a .

Accepted Answer

A)   relatively slow frequency pattern of brain waves
B)   relatively rapid frequency pattern of brain waves
C)   nearly flat EEGD) A) and B)
E) A) and C)

Question 11

A flat EEG is a clinical sign of .

Accepted Answer

A)   epileptic seizure
B)   brain death
C)   brain tumor
D)   brain abscessE) A) and B)
F) All of the above B

Question 12

The electroencephalogram (EEG)  is a recording of .

Accepted Answer

A)   electrical activity of muscles of the skull
B)   summed electrical activity of many neurons in the brain
C)   electrical potentials in the skin of the scalpD) None of the above
E) A) and C)

Question 13

An EEG study may be used to diagnose _ .

Accepted Answer

A)   visual abnormalities
B)   epilepsy
C)   hormonal disorders of the brain
D)   hydrocephalusE) All of the above
F) B) and D) B

Question 14

All of the following is true of an EEG except .

Accepted Answer

A)   it can be used to diagnose brain tumors
B)   it measures the activity of specific regions of the brain
C)   the frequency of the wave forms increases with mental activity and alertness
D)   it represents summed electrical activity of many neuron in the brainsE) C) and D)
F) B) and C)

Exam 18: Electroencephalography

Deep sleep is associated with _.

Correct Answer
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B

EEG studies are valuable because .

Correct Answer
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An EEG showing either very rapid or extremely slow frequency brain waves may occur when an individual is .

Correct Answer
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Brain waves of this type predominate when an individual is attentive and alert.

Correct Answer
verified

Which of the following EEG waves has the lowest frequency?

Correct Answer
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This type of brain wave is normal in children, but abnormal in adults.

Correct Answer
verified

Alpha block, the suppression of alpha waves that can be seen in the EEG, occurs when .

Correct Answer
verified

A physician may order an EEG study if the patient is suspected of having .

Correct Answer
verified

Respiratory alkalosis results in EEG waves _.

Correct Answer
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An alert individual has a .

Correct Answer
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A flat EEG is a clinical sign of .

Correct Answer
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B

The electroencephalogram (EEG) is a recording of .

Correct Answer
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An EEG study may be used to diagnose _ .

Correct Answer
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B

All of the following is true of an EEG except .

Correct Answer
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Exam 18: Electroencephalography

Deep sleep is associated with _.

Correct AnswerverifiedB

EEG studies are valuable because .

Correct AnswerverifiedShow Answer

An EEG showing either very rapid or extremely slow frequency brain waves may occur when an individual is .

Correct AnswerverifiedShow Answer

Brain waves of this type predominate when an individual is attentive and alert.

Correct AnswerverifiedShow Answer

Which of the following EEG waves has the lowest frequency?

Correct AnswerverifiedShow Answer

This type of brain wave is normal in children, but abnormal in adults.

Correct AnswerverifiedShow Answer

Alpha block, the suppression of alpha waves that can be seen in the EEG, occurs when .

Correct AnswerverifiedShow Answer

A physician may order an EEG study if the patient is suspected of having .

Correct AnswerverifiedShow Answer

Respiratory alkalosis results in EEG waves _.

Correct AnswerverifiedShow Answer

An alert individual has a .

Correct AnswerverifiedShow Answer

A flat EEG is a clinical sign of .

Correct AnswerverifiedB

The electroencephalogram (EEG) is a recording of .

Correct AnswerverifiedShow Answer

An EEG study may be used to diagnose _ .

Correct AnswerverifiedB

All of the following is true of an EEG except .

Correct AnswerverifiedShow Answer

Correct Answer
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B

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B

Correct Answer
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B

Correct Answer
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