Hardware Dz Flashcards
Why are heart sounds muffled?
Exudate in pericardial cavity due to inflammation
Or scar tissue if chronic
Which heart chamber is most adversely affected due to traumatic pericarditis
RV (thin walled)
Why does the cow have jugular vein distension ?
R heart doesn’t fill properly > venous congestion > pressure wave propagated up column of fluid in vein
What does the jugular pulse in a cow with pericarditis represent? Why can you see this contraction?
atrial contraction. There are no valves between atrium and great veins
A jugular vein pulse how far up a cows neck is normal?
1/3
Why does the cow get submandibular oedema?
increased hydrostatic pressure at venous end of capillary, inc net filtration out of capillary beds –> oedema
Why will the cow lose weight?
Not eating due to pain in cranial abdomen, fever
Why is the cow weak and reluctant to move?
Dec output from R heart, venous blood pools at periphery –> overall decreases perfusion through tissues
= hypoxia, fatigue, exercise intolerance
What are clinical signs of traumatic pericarditis?
Ruminoreticular atony Inc HR Exercise intolerance Arched back Pain at wither pinch/ xiphoid process pressure Heart sounds muffled
What kind of exudate would you expect in pericarditis
fibrinopurulent
