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16 Cards in this Set
- Front
- Back
What percentage of body weight is water?
What percentage of that is intracellular? Extracellular? |
60%
40% 20% (15% interstitial, 5% plasma) |
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What is the blood volume of most animals? Cats?
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8-9% of body weight
5-6% of body weight |
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How does decreased blood volume effect blood pressure?
How is this sensed? Where? |
Will decrease
Baroreceptors Aorta (carotid body) |
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Increasing sympathetic tone will do what to blood pressure?
Increase parasympathetic tone will do what to blood pressure? |
Increase BP-> RAAS -> aldosterone -> salt and water retention
Decrease BP |
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What is osmolarity regulated by? Where is this located?
What is released when there is increased osmolality? |
Osmoreceptors
Hypothalmus Vasopressin |
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Is net flow of fluids in or out of vessels?
What removes this fluid? |
Out
Lymphatics |
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What are the three causes of increased outflow of fluid from vasculature?
|
-Leaky vessels
-Decreased intravascular albumin -Increased hydrostatic pressure |
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Is systemic or pulmonary circulation more likely to develop edema? Why?
|
Pulmonary
Cause it's a lower pressure system and bigger fenestrations |
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What is the formula for total tissue blood flow?
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Mean arterial BP - central venous pressure / resistance
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What are the four types of shock?
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Hypovolemic ex. Hemorrhage, severe dehydration
Vasodilatory ex. Inflammatory mediators, drugs, toxins, neurogenic Cardiogenic ex.Drugs, inflammatory mediators, heart disease Obstructive ex.GDV |
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What is shock?
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Decrease O2 delivery to tissues based due to decrease in blood flow
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What is the best way to treat hypovolemic shock?
Vasodilitory? |
fluids
vasopressors such as epinephrine |
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What is the best way to treat cardigenic shock? Obstructive?
|
Positive inotropes, diuretics, vasodilators
Remove cause of blockage |
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What are the three stages of shock?
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1) Compensated
2) Early Decompensated 3) Decompensated |
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What are clinical signs of shock?
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Increased heart rate, weak pulses, dull, decreased urine output, pale gums, prolonged CRT
|
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What is SIRS? What is sepsis?
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Systemic inflammatory response syndrome
If SIRS is caused by an infection |