Test 5 questions answered wrong

T/F: Chronically occluded vessels are often dilated and enlarged.

False

T/F: Perforator veins have valves to prevent flow from moving from the superficial venous system to deep venous system.

False

T/F: The Allen test is a quick method to determine aortic arch latency, but it is less reliable than some other methods.

False

T/F: The appropriate technique for patient position in an upper extremity arterial study is to have the patient sitting up in a semi-fowlers position.

False

T/F: The majority (95%) of thoracic outlet syndrome cases are vascular in etiology.

Fasle

In response to vasodilation, the pulsitality of flow in medium and small size arteries of the limbs:

Decreases

Which occlusion of the proximal left ICA, perfusion to the left hemisphere would least likely occur from which of the following collateral pathways?

Left ECA to distal ICA via occipital artery

The most frequent and serious complication with an abdominal aortic aneurysms is:

Rupture

A 50 year old female complains that her lower thighs and calfs hurt after running 1 mile. Talking about claudication, you should assume:

Popliteal/ femoral disease

With a dissecting aneurysm, a tear occurs in the intima allowing the formation of:

Possibility of thrombus

All of the following are renal Indirect criterial for a greater than 60% stenosis except:

Presence of diastolic flow

The appearance of "early systolic deceleration" in the left vertebral artery waveform is usually due to which of the following conditions?

Proximal left subclavian stenosis

A high resistance flow pattern in the mid pattern in the mid portion of the ICA suggests which of the following conditions:

Severe distal ICA stenosis

In the presence of an innominate/brachiocephalic artery occlusion, the ipsilateral common carotid artery is often supplied by _____ flow in the right _____ artery.

Retrograde, subclavian

External-to-internal collateralization is evident when there is _______ flow in the ipsilateral ______ artery.

Retrograde; ophthalmic

Which vessels will you find just distal to the SMA?

The renal arteries

T/F: Reductions in the length of a vessel will reduce resistance and increase flow according to Poiseuille.

True

A critical, hemodynamically significant stenosis causes a major reduction in ___ and ____:

Volume flow; Pressure

In Doppler Segmental Pressure exam a decrease in pressure of ______ between two consecutive levels is considered significant and would suggest significant obstruction (best answer):

Greater than 20-30 mmHg

All of the following are symptoms of "mild arterial disease" except:

Intermittent claudication

Poiseuille's Law states that the length of a vessel or tube is ______ to the flow volume.

Inversely proportional

Perforating veins that exceed this diameter have a high predictive valve for being incompetent.

> 3.0mm

When evaluating the ophthalmic artery during a trans orbital doppler exam, the normal flow pattern in this artery should be:

Antegrade

The dorsals pedis artery is an extension of the ______:

Anterior Tibial Artery

Arteriosclerosis tends to develop:

At junctions and bifurcations

A patient presents with the classic cerebrovascular symptom of left amaurosis fugax. Of the choices below, which is the most likely cause?

Atheroemboli from the left ICA

Flow at the MCA/ACA junction should appear on the display as:

Bidirectional

Which of the following is the first branch of the abdominal aorta?

Celiac axis

Which of the following becomes an extra cranial to intracranial collateral route in the presence of significant ICA disease?

ECA branches to the branches of the ophthalmic artery

A vein that appears large and circular in shape is most likely having the following:

High intraluminal pressure

All of the following are true about Primary Raynauds phenomenon except:

Ischemia is constantly present

If a patient does not display respiratory variations in the proximal veins (CFV, FV); and this can be demonstrated bilaterally, then the following diagnosis or procedure is most accurate:

Normal variation for this patient

A 65 year old hypertensive male presents for cerebrovascular testing for an asymptomatic cervival bruit on the right side. All of the following are possible except:

Occlusion of the CCA

Symptoms of superficial thrombophlebitis include all of the following except:

Persistent calf or leg swelling

All of the following are criteria for a greater than 60% renal artery stenosis except:

Resistant index (RI) less than 0.75

The vertebral/basilar arteries can be seen from a ________ approach.

Suboccipital

Incompetence in this valve often leads to the entire GSV being incompetent. What is this valve?

Terminal Valve

T/F: Burgers disease is an inflammatory process that causes thrombosis if the digital arteries.

True

Spectral broadening occurs in the presence of:

Vascular disease, twist and bend, and Doppler gain over- gained

A patient presents to the vascular lab with symptoms of vertigo, bilateral visual disturbances, and ataxia. You should suspect:

Vertebral- basilar insufficiency

All of the following statements are true regarding Pulsed Doppler waveform morphology of the peripheral arteries except:

Vessels are primarily low resistance in nature

Your next patient has a transcranial doppler study (TCD) ordered. Which of the following statements about that procedure is not correct.

You will be using 2MHz continuous-wave doppler