06/01/2023
Let's talk FLUIDS!
What are some examples of crystalloid solutions? Colloid solutions?
Crystalloids - Normal saline (NS), Lactated Ringers (LR), Plasmalyte
Colloids - Albumin, Blood products (ie platelets, cryoprecipitate, RBCs, etc)
What are the mEq of Na and Cl in each of the 3 crystalloids listed above?
NS - Na: 154, Cl: 154
LR - Na: 130, Cl: 109
Plasmalyte - Na: 140, Cl: 98
What are the respective pHs of NS, LR and plasmalyte?
NS: 5.5
LR: 6.5
Plasmalyte: 7.4 (most physiologic)
What is the difference between resuscitative fluids and maintenance fluids?
Resuscitative fluids are used for patients who are intravascularly depleted from a biologic or metabolic process
Maintenance fluids are used in patients who are intravascularly replete, but are unable to take in oral fluids to maintain euvolemic status
Now that you have the basics down, let's kick it up a notch with more questions straight from Pocket Pimped: General Surgery....
What physiologic derangement occurs with administration of too much NS?
What is typically used for maintenance fluid in surgical patients? Why?