Fluid And Electrolytes Flashcards
Sodium Ranges
135-145 mEq/L
Chloride ranges
95-105 mEq/L
Potassium ranges
3.5-5 mEq/L
Calcium ranges
8.5-10.5 mEq/L
Magnesium Ranges
1.8-2.7 mEq/L
Phosphate ranges
2.5-4.5 mEq/L
Examples of isotonic fluids
0.9% NS, LR, D5W (isotonic in bag)
Hypotonic fluids
0.45% NS, D5W (in body after glucose is metabolized)
Hypertonic IV fluids
3% NS
Plasma Expanders
Albumin, PRBCs
Crystalloids are ____ soluble mineral solutions
Water
Colloids contain _____ molecules
Insoluble
Colloid solutions ____ plasma volume. They ___ peripheral edema. ____volumes are used for resuscitation. They have an IV half life of. ___ to ___ hours.
Increase, decrease, small, 3-6.
Crystalloid IV solutions are _____ (money wise). They are used as ___ fluid. They store ___ space loss. They have an IV half life of ___ to ____ mins.
Inexpensive, maintenance, 3rd, 20-30 mins.
Hypotonic solutions are ___ concentrated than cells.
Less
Hypotonic solutions may cause _____, _____, and _____. How do you assess for these changes?
cell swelling, fluid overload and hyponatremia. Assess for Neuro changes (cell swelling), BP and crackles (FVE), and DO NOT ADMINISTER TO LOW SODIUM PATIENTS.
What are isotonic solutions ideal for?
Bleeding patients, hemoconcentration and dehydration
What is the only IV solution given with blood?
0.9% NaCl
Lactated ringer has multiple ____. When should it not be given?
- multiple electrolytes
- should not be given for electrolyte imbalances, acid-base imbalance or kidney injury patients
D5W is a ____ isotonic. How many cal/L does it supply?
Fake; 170 cal/L
Why can’t D5W be the only source of fluid?
It may dilute plasma electrolytes
All isotonics may cause ____, ____, and ____.
Fluid overload, H&H dilution, and electrolyte imbalances (high serum chloride)
What are hypertonic solutions used for?
Symptomatic hypovolemia and hyponatremia
Besides NaCl, what are other hypertonic? What must they be balanced by?
TPN, enteral feedings —> must be balanced by hypotonic
What risk comes with hypertonic solutions? How to monitor?
Fluid overload —> monitor for pulmonary edema (BP, crackles, serum sodium)
What volume are hypertonics run at?
200-250mL
How does albumin work?
Increases plasma oncotic pressure —> intravascular volume
What risk does whole blood run?
Fluid overload