Chapter 26 TESTING CONSIDERATIONS FOR NONINVASIVE VENOUS TESTING Flashcards
What are some examples of pertinent clinical history?
- past studies
- past procedure
Physical examinations findings
1.swelling
2. redness
3. warmth
What are laboratory findings?
blood work
What is the degree of tension in vein walls?
Venomotor tone
A sonographer is responsible for knowing?
- laboratory protocols/standards
- study capabilities
- Study limitations
- correct patient positioning
- Correct technique
- correct interpretation
What does an IAC must have?
- uniform diagnostic criteria
- interpret all data obtained
What are common findings for a DVT?
- swelling
- Pain
- Redness
- Erythema
- Warmth
What does the Wells Score determine?
The likelihood of an acute DVT
What are some other conditions that mimic DVT’s?
- muscle strain
- direct injury to the leg
- muscle tear
4.Bakers cyst - Cellulitis
- Lymphangitis
- Heart Failure
- Extrinsic compression
- Compilations of the chronic venous insufficiency
- Adventitial cystic disease
What are the symptoms of Chronic Venous Thrombosis?
- swelling
- Erythema
- Heaviness/aching
- Discoloration of ulcerations
- varicosities
What is Virchow’s Triad
Trauma to the vessel
What are the three conditions of Virchow’s Triad
1.Stasis
2. Vessel Wall injury
3. hypercoagulability
What does intrinsic trauma entail?
- intravenous drugs
- catheter
- Central venous catheter
Extrinsic trauma is a result of what?
an accident
Venous stasis can be a result of what?
- Bed rest
- myocardial infarction
- congestive heart failure
- hypotension
- chronic obstructive pulmonary disease
- obesity
- pregnancy
- Previous DVT
- Extrinsic compression
Hypercoagulability is a result of what?
- Pregnancy
- Cancer
- Oral contraceptives
- hormone replacement therapy
- inherited states
Where does thrombosis like to form?
Valve cusps/ soleal sinuses
What is Paget-Schroetter syndrome?
Thrombosis of SCV/Axillary Vein due to intense repetitive activity.
May-Thurner syndrome is now known as what?
Left Common iliac vein compression
What does May Thurner syndrome entail?
Left common iliac vein (LCIV) compression by the Right common iliac vein (RCIV).
What is Left renal vein compression?
aka nutcracker syndrome
compressed between the aorta and SMA.
What is the great clinical danger of DVT?
Pulmonary Emoblism
What are some ways valvular incompetence occurs?
Damaged valves by DVT or venous HTN.
Chronic Venous insufficiency involves what?
1.both deep and superficial systems
2. Incompetent venous valves