Hemodynamic disorders Flashcards
Mechanism of fluid accumulation in heart failure
increase in hyrdrostatic pressure
Mechanism of fluid accumulation in nephrotic syndrome
decrease in oncotic pressure
Mechanism of fluid accumulation in burns and infections
increase vascular permeability
Mechanism of fluid accumulation post MRM
lymphatic obstruction
During chronic congestion, macrophages phagocytose RBCs leading to this cell type (hemosiderin-laden)
heart failure cells
____ (acute, chronic) congestion wherein the central vein and sinusoids are distended with centrilobular ischemic necrosis and periportal fatty changes
acute congestion
Steps in hemostasis
- Arteriolar vasoconstriction
- Primary hemostasis
- Secondary hemostasis
- Clot stabilization and resorption
Deficiency in GPIIb-IIIa
Glanzman Thrombastenia
Deficiency in GP1B
Bernard-Soulier Syndrome
Most common cause of hypercoaguability due to resistance in Activated Protein C
Factor V Leiden
Presence of lines of zahn suggests ___ thrombosis
arterial
Condition that is characterized as thrombosis with thrombocytopenia
APAS
Most common source of pulmonary embolism
DVT
Most common source of systemic thromboembolism
mural thrombi arising from LV infarcts
___ mL of air can result in symptomatic air embolism
100cc
___ disease: ischemia of femoral head, tibia, and humerus; seen in decompression sickness
Caisson disease
type of infarct seen in solid organs and end-arterial circulation like heart, spleen, kidney
white infarct
[Stage of shock]
presence of tachycardia with peripheral vasoconstriction and renal fluid vasoconstriction
non-progressive
basically, reflex compensatory mechanisms are intact, perfusion of vital organs are maintained
[stage of shock]
Onset of lactic acidosis due to tissue hypoperfusion
progressive
[type of shock]
increased PCWP, low CO, high SVR
cardiogenic
[type of shock]
decreased PCWP, increased CO, decreased SVR
distributive
