Kahoots - Exam IV Flashcards
Surgery is indicated for aortic aneurysm that exceeds?
5.5cm, >10mm per year
Anterior spinal artery syndrome is characterized by?
Loss of motor function, autonomic dysfunction
The most common cause of ASA syndrome includes?
- Atherosclerosis
- Aortic aneurysms
- Aortic dissections
Ascending aortic aneurysms include?
- Debakey 1
- Debakey 2
- Stanford A
The most common deficit associated with aortic replacement requiring cardiopulmonary bypass is?
Neurologic
Which population is aortic dissection most common?
- Men
- Women in 3rd trimester pregnancy
Most AAA rupture into?
Left retroperitoneum
Primary cause of mortality related to surgeries of thoracic aorta include?
- CVA
- MI
Most commonly, cardiogenic embolisms originate from?
- Left atrial thrombus
- Left ventricle thrombus
Subclavian steal syndrome leads to?
Retrograde blood flow in the ipsilateral SCA
Superficial thrombophlebitis and DVTs are most seen with almost half of patients undergoing which specific surgery?
Total hip replacements
Which is true regarding LMWH vs unfractionated heparin?
longer half-life, not reversible
Patients with a history of TIA have a ___ times greater risk for CVA:
10
Cerebral O2 consumption/metabolic rate is mostly affected by?
- Depth of anesthesia
- Temp
What is the lifespan of nonactivated platelets?
8-12 days
The platelet activation phase occurs?
Upon interaction with collagen and TF
Which element is an essential part of coagulation tenase-complexes?
Calcium
Prothrombinase complex is composed of which factors?
- Factor Xa
- Factor Va + calcium ion
Which factor activates factor IX?
- TF/VIIa complex
- XIa
Phase 2 hemostasis is primarily initiated by?
Extrinsic pathway
Which system mainly amplifies thrombin generation?
Intrinsic pathway
Prothrombinase complexes convert?
- Factor II to IIa
- Prothrombin to thrombin
Coagulation counter-mechanisms include?
- Protein C
- Tissue factor pathway inhibitor
- Serine protease inhibitors
- TPA and urokinase
Supplements that cause blood thinning include?
- Turmeric
- Vitamin E