Fluid Balance And Blood Products Flashcards
Fluid balance =
Intake-outtake
Total body weight=
Body weight x 0.6
What is fundamental for homeostasis?
The movement of solutes to help move water
Osmosis causes …
Water to shift, aiming for equal solute concentration
What do plasma proteins (albumin, fibrigin,globulins) produce?
Oncotic pressure
During inflammation …
Proteins leak out due to blood vessel
changes
The arterial end of the capillary has …
High hydrostatic pressure and low oncotic pressure
Fluid leaves the capillary
The venous end of the capillary has …
Low hydrostatic pressure and high oncotic pressure
Waste products enter the capillary
The biochemical signs of dehydration:
Raised urea and normal createnin
The biochemical signs of AKI:
Raised urea and raised createnin
What are the ranges of mean arterial pressure (MAP)
Normal = 70-110mmHg
Poor perfusion =
Mean arterial pressure (MAP) =
Cardiac output (CO) x systolic vascular resistance (SVR) + central venous pressure (CVP)
What is the normal value for central venous pressure?
3-8 mmHg
What must be considered for pts who are NBM?
Does the pt require fluids as they can become dehydrated very quickly
What are the problems with pts who have oedemas?
Increased capillary permeability can lead to sepsis and cellulitis
Increased venous pressure can lead to heart failure
Decreased oncotic pressure and albumin can lead to liver disease