Pathophysiology Quiz 2

Pathophysiology quiz 2

21 cards   |   Total Attempts: 189
  

Cards In This Set

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Factors affecting drowning
Dont find H2O in lungs because of vasovagal nerve which makes trachea spasm. Can live longer in cold water
Percent of oxygen that is life threatening
Under 16%
Cellular changes that happen with injury to tissues
Hypoxia/anoxia, when cell swells can't operate normally. Cellular accumulations (infiltrations) are water, lipds and carbs, glycogen, and proteins, lead to swelling of cells. K leaks out of cell and Ca goes in when cell damaged.
What affects cell membrane
Histamine, antibodies, lymphokines, complement, and proteases
Apoptosis vs necrosis
Apoptisis is "dropping off", programmed cell death, need to die. Necrosis is death of cell due to unexpected or accidental cell damage
Examples of gangrene
Dry gangrene is coagulative necrosis, skin becomes dry, shringks and wrinkles and turns dark brown or black.
Wet develops when neutrophils invade site causing liquefactive necrosis, occurs in internal organs, foul odor.
Postmortem changes
Algor mortise: Decrease in body temp.
Livor mortise: Purple in lower areas
Rigor mortise: 6 hours after death muscles stiffen for 12-24 hours
Postmortem autolysis: Putrification: Release of enzymes and lytic substances that break body down
Percent of fluids in different groups of people
Women are 55%
Men are 60%
Percent of fluids in different compartments
Intracellular: 65%
Extracellular water 33%
Interstitial : 25% of extracellular
Plasma: 5-8% of extracellular
Transcellular: 1-2% of extracellular
Pressure as at the arteriole versus the venous ends of capillaries
Arteriole net outward pressure 13.3 mmHg
Venous net inward pressure 6.7 mmHg
Measuring fluid hemostasis in patients
Positive balance: Input is greater than output, fluid overload
Negative balance: Input is less than output, dehydration
Cations and anion in body fluids
Cations: (Acids) na, K, Ca, H
Anions: (Bases): Cl-, HCO3-, PO4 3-
Nonelectrolytes: (Uncharged): O2, CO2, proteins, urea, glucose
What mechanisms maintain fluid hemostasis
Ion transport, water movement, kidney function
What are milliequivalents
Molecular weight in mg/valence
Molecular weight is sum of weights of atoms in molecule
The effect of cells of hypotonic, hypertonic, and isotonic fluids
Hypertonic: Cell shrivels, more than 0.9% nacl
Hypotonic: Cell bursts, less than 0.9% nacl
Isotonic: Gain or loss of ECF resulting in a 0.9% nacl solution