PcmIV Flashcards
Saline lock
An IV cannula placed that allows for immediate administration of medications intravenously. Flushed with saline each shift, to maintain patency
Maintenance IV
solution that is given at a constant rate, round-the-clock. Examples include patients that are unable to maintain their fluid needs by mouth (after surgery, intractable vomiting, comatose, etc.)
Piggy back
Additional medication given IV by utilizing a port included in the maintenance IV tubing; runs concurrently with the maintenance IV
Bolus
A specific volume given over a short period of time (i.e. 250ml wide open—as fast as the fluid can be administered within the vein
Colloid
Does not readily pass through a membrane; i.e. intravascular and extravascular (interstitial) fluid compartments
Crystalloid
Pass readily through a membrane; i.e. intravascular and extravascular (interstitial) fluid compartments
Isotonic solution
Osmolality near that of plasma (>250mOsm/L but <375mOsm/L)
Hypotonic
Osmolality that is less than that of plasma (<250mOsm
Hypertonic
Osmolality greater than that of plasma (>375mOsm
Free water
Water not bound by macromolecules
Calculate maintenance fluid
Hourly rate 4 ml for 1 – 10kg +
2 ml for 11 – 30kg + 1 ml for each >30kg
70 kg person = 120 ml/hr
Body water deficit calculate
{0.6 x weight (kg) X (patient Na – 140 [nl Na])}/ 140 [nl Na] Ex: 0.6 X 70 X (144 – 140)/ 140 = 1.2 L deficit
Crystalloid
solutions of salts and electrolytes used for volume expansion. Examples includes NS, LR, D5W
Colloids
solutions that contain large molecules and provide oncotic pressure in addition to volume expansion. Examples include protein solutions such as albumin and non-protein solutions such as Dextran and Hydroxyethyl starch (HES
D5W dextrose 5%
Osmolality-278
Glucose-50
Na-0
Cl-0
Hco3 equilivent-0
D10W dextrose 10%
Osmolarity 505
Glucose 100
Na0 cl0 hco30
.45 nacl
Osmolality 154
Glucose 0
Na 77mEq/L
Cl 77 mEq/L
.9% nacl
Osmolality 308
Glucose 0
Na 154
Cl154
3% nacl
1026
Na 513
Cl513
Lactated ringers
Osmolality 274
Na 130
Cl109
Hco3 equilivents 28
Hypotonic solutions
.45 ns
Isotonic solutions
.9% ns
D5w
Lactated ringers
Hypertonic solutions
3% saline
D5NS
D5LR
D10W
When use isotonic
solutions can be used for maintenance fluids or resuscitation. Maintenance fluids applies to situations when a patient is unable to drink or take in enough fluids to maintain physiologic needs. Examples include post-operative period, inability to swallow or protect airway from aspiration (facial trauma, acute CVA), burns, or intubation