Chapter 10 Flashcards

1
Q

Malignant tumors, benign tumors and inflammatory conditions are not related to:

A

Hypoxia

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2
Q

Select the true statement regarding ACR practice guidelines for an ultrasound examination of the female pelvis:

A

Use the lowest possible sonographic exposure settings to gain the necessary diagnostic information.

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3
Q

Choose the most appropriate transducer frequency for a transabdominal pelvic sonogram when more depth penetration is needed.

A

2.5 MHz

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4
Q

A full urinary bladder enhances uterine visualization, but frequently causes a suboptimal ______ Doppler exam owing to the angle of incidence.

A

Uterine artery

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5
Q

If a cystic mass is suspected during a full bladder pelvic ultrasound examination, the patient should:

A

Void the urinary bladder and further investigate the pelvis

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6
Q

Which position provides the best visualization of free fluid in the pouch of Douglas during an endovaginal ultrasound examination?

A

Lithotomy with a slight reverse Trendelenburg

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7
Q

Quantitative measurements of Doppler studies include:

A

Measurements of estimating absolute blood velocities, assessment of vascular impedances, and quantifying flow disturbances

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8
Q

With constant perfusion pressure, the flow ____ as the impedance to flow ___.

A

Increases, decreases

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9
Q

Resistive Index (RI) calculates:

A

The peak systolic velocity to the end diastolic velocity

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10
Q

Suspicion for vascular occlusion occurs when a :

A

High resistance pattern is detected where low resistance is normally seen

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11
Q

A correct angle of _____ is required when analyzing vascular flow to determine its velocity by a Doppler shift.

A

Less than 60 degrees

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12
Q

Normal arterial flow is seen as:

A

Alternating quick uptake systolic peak followed by a lower diastolic flow

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13
Q

What is laminar flow?

A

Blood velocity traveling highest in the mid vessel

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14
Q

Name the vessel (appearing as a tubular structure) often seen sonographically in the outer uterine myometrium.

A

Arcuate artery

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15
Q

The functional layer of the endometriums blood supply is by the:

A

Radial and spiral arteries

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16
Q

An arteriovenous malformation (AVM):

A

Is typically acquired through surgery or trauma

17
Q

Choose a statement that is not related to pelvic congestion.

A

Frequently diagnosed in nulliparous women

18
Q

The best description of classic ovarian torsion is:

A

An enlarged, edematous ovary with multiple small peripheral follicles and little or no vascular flow

19
Q

Complex cysts of the pelvis are:

A

Difficult to discriminate because benign and malignant characteristics can be similar

20
Q

Which statement is correct?

A

High resistance flow has a low end-diastolic value with a high peak systolic value