Week 3 - IV Fluids Flashcards
H2O proportion decreases with age.
True or False?
True
Define osmolarity
The concentration of a solution expressed as the total number of solute particles per kilogram (within the body)
Electrolytes have less osmotic power than non-electrolytes. True or False?
False
Name the TWO MAIN forces that contribute to Starlings equilibrium.
Blood hydrostatic pressure (BHP) and Blood (colloidal) osmotic pressure (BOP)
What does blood (colloidal) osmotic pressure do in the capillary?
Pulls fluid back into the capillary from the interstitial compartment
What system removes excess fluid from the capillaries and returns it to circulation?
Lymphatic system
Oedema occurs when BHP rises and/or BOP declines. True or False?
True
Obstruction to lymph flow and increased capillary permeability are both causes of oedema.
True or False?
True
Describe what is meant by the 3:1 rule in association with blood loss and fluid resuscitation.
Infuse 300mL of crystalloid for every 100mL of blood lost to achieve fluid resuscitation
How much of the infused crystalloid IV fluid will still be in the vascular space 1 hour post administration?
One third
Define the term colloid.
A substance made up of larger particles that are unable to pass through the capillary membrane and thus remain in the intravascular space. The particles can be large molecules like proteins.
What is the primary goal of fluid resuscitation?
Aims to rapidly restore intravascular volume through administration of large volumes of IV fluid to restore cardiac output and perfusion.
Name three possible complications associated with fluid resuscitation.
Any of the following – Hypothermia, Acidosis, Haemodilution, Fluid Overload
You are asked to administer a 300mg amiodarone infusion using 100ml 5% glucose via a standard running line.
How many drips per second to run this infusion in 15 minutes?
2 drops per second
(100ml x 20ggt/ml) / 15 minutes = 133 drops per minute; 133/60 = 2 drops per second
