Bardin Lecture Flashcards Preview

Block 3; Week 3 Michelle > Bardin Lecture > Flashcards

Flashcards in Bardin Lecture Deck (14)
Loading flashcards...
1
Q

What is the difference b/w an aneurysm & a dissection? And where does each usu occur?

A

Aneurysm: usu occurs in the abdominal aorta
It bloats out, but no blood gets thru the layers.
Dissection: usu occurs in the thoracic aorta
intima gets messed up & blood gets thru the layers

2
Q

What is a potential cause for sudden back pain?

A

a ruptured abdominal aortic aneurysm

3
Q

With aneurysms…what is the role of thrombus?

A

Often, thrombus fills the lumen of the aorta until the lumen is closer to its original size.

4
Q

What membrane covers the aorta?

A

parietal peritoneum b/c the aorta is retroperitoneal

5
Q

What might you hear with your stethoscope when there is a huge aneurysm?

A

a bruit

6
Q

What can cause shock? What are its symptoms?

A
can be caused by: bleeding, low blood volume, sepsis, inadequate tissue perfusion
Symptoms:
confusion
reduced urine output
hypotension
tachycardia (to compensate)
7
Q

What are the 2 contexts in which aneurysms are discovered?

A

Found by chance…need to decide if you will fix it.

Found b/c it ruptured! Fix it or they will die.

8
Q

How do we fix an aneurysm these days?

A

Graft w/ a stent

it is fed up thru the groin & popped into place

9
Q

What is the difference b/w a blood clot that is thrombotic vs. embolic?

A

Thrombotic: the blood clot is lodged in the place where it was formed…
Embolic: blood clot traveled from one place & lodged in another

10
Q

What is mesenteric ischemia?

A

interruption of blood flow to the intestines usu b/c of a blood clot
If Acute: no time for collaterals to develop
If Chronic: collaterals had time to develop

11
Q

What is an endoarectomy?

A

when you go into the aorta & remove the plaque that is obstructing blood flow

12
Q

Where do emboli typically lodge?

A

at a branch point of the vessel

13
Q

Abdominal aortic aneurysms are usu _________.

A

athersclerotic

14
Q

Dead intestine is a powerful generator of what? What could this lead to?

A

a powerful generator of acid

could lead to metabolic acidosis