Nursing 110 Test 2
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Nursing 110 Test 2
Around 60%
Varies with gender, body mass, and age
Water distribution
-Transports nutrients and wastes
-Regulates temperature
-Lubricates membranes
-Facilitates food digestion
Water distribution functions
Extracellular and Intracellular
Fluid distribution
Intravascular fluid,
interstitial fluid,
transcellular fluid
Extracellular
Cation and Anion
Electrolytes are and composition of body fluid
Na+ and Ca+
Cations (+ Charged ions) ~ (Extracellular)
K+, Mg+, Ca+
Cations (+ charged ions) ~ (Intracellular)
Cl-, HCO³-
Anions (- charged ions) ~ Extracellular
P-
Anions (- charged ions) ~ Intracellular
Active Transport
Diffusion
Osmosis
Osmolality
Movement of water and Electrolytes
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The state of equilibrium in the internal
environment of the body to promote healthy survival.
"Physiological Balance"
Homeostasis
Kidneys
Heart
Lungs
Brain
Regulation of Fluid and balance
Fluid Regulation
Filtration
Hydrostatic Pressure
Oncotic Pressure
Movement of body fluids and ions
Isotonic, Hypotonic, Hypertonic
MOVEMENT OF FLUID &
ELECTROLYTES
Red cells undergo no change
Isotonic
Red cells increase in size is
Hypotonic
Red cells decrease in size
Hypertonic solutions
Fluid and electrolyte imbalances
Disturbances in fluid and electrolyte balances .
Dehydration
-Hypovolemia
-Hypervolemia
Fluid imbalances
When loss of ECF volume
exceeds the intake of fluid.
Fluid volume deficit Hypovolemia
Causes:
-Insensible water loss or perspiration- fever,
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heatstroke
-Diseases that cause increased urination- Diabetes
insipidus
-Diuretic therapy, laxative use
Hemorrhage
-GI losses- NG drainage, diarrhea, fistula drainage,
vomiting
-Third-space shifting- burns, intestinal obstruction
Hypovolemia causes
-Clinical Manifestations
-Deterioration of mental status
-Thirst, dry mouth
-Tachycardia/Weak/absent peripheral
pulses
-Poor skin turgor & dec. capillary refill
-Orthostatic hypotension
-Flat jugular veins
-Decreased urinary output
-Weight loss
-Cool, pale skin
Hypovolemia signs and symptoms
-Nursing Interventions
-Assess VS and LOC
- Assess skin turgor
- Assess moisture of
oral cavity
-Encourage PO fluids
-Monitor I&O
-Daily weights
- Treat underlying
cause
Provide effective
skin care
- Isotonic fluids