intro to f/i Flashcards
1
Q
F/E HOMEOSTASIS
A
- INTAKE
- DISTRIBUTION
- OUTPUT
2
Q
DISTRIBUTIONS OF BODY FLUID
A
*ICF: 40% IN THE CELL
*ECF: A. ISF 15% BETWEEN CELLS
B. IVF 5% VASCULAR
*TRANSCELLULAR
3
Q
COMPOSITION OF BODY FLUIDS
A
- ELECTROLYTES/WATER
- MINERALS
- CELLS
4
Q
FLUID SPACING
A
- FIRST– ICF AND ECF
- SECOND– ABNORMAL ISF EDEMA
- THIRD— AREAS USUALLY WITHOUT FLUID
5
Q
FLUID MOVEMENT
A
- DIFFUSION: MOVING FROM HIGHER CONCENTRATION TO LOWER CONCENTRATION
- OSMOSIS: WATER MOVING FROM LOWER TO HIGHER AREA
6
Q
OSMOTIC PRESSURE
A
*THE DRAWING POWER OF WATER EXERTED BY SOLUTE PARTICLES. THE PRESSURE FORCING THE SOLVENT ACROSS THE MEMBRANE IS CALLED OSMOTIC PRESSURE
7
Q
OSMOLARITY
A
*A MEASURE OF TOTAL SOLUTE CONCENTRATION PER/LITER
OF SOLUTION.
8
Q
FLUID COMPOSITION
A
- ISOTONIC: SAME OSMOLARITY *HYPOTONIC: MOVES H20 INTO CELLS
- HYPERTONIC: MOVES H20 from CELLS
9
Q
REGULATION OF H20 BALANCE
A
- HYPOTHALMAS
- FLUID OUTPUT
- HORMONES:
ADH
ALDOSTERONE - RENAL
10
Q
HORMONES
A
* POS. PIT> ADH> H20 REABSORBED BY KIDNEYS *ADRENAL CORTEX> ALDOSTERONE>REGULATES NA AND K * KIDNEYS EXCRETE K REABSORB H20 (H20 AND NA FOLLOW ONE ANOTHER)
11
Q
THIRD PLACING
A
LOSS OF ECF INTO A SPACE THAT DOES NOT CONTRIBUTE TO EQUILIBRIUM BETWEEN THE ICF AND ECF
- EVIDENCE: DECREASE URINE OUTPUT EVEN THOUGH ADEQUATE URINE INTAKE BECAUSE THE FLUID SHIFTS OUT OF THE IVR; KIDNEYS RECEIVE LESS BLOOD AND DECREASE DURING OUTPUT
- INCREASE HEART RATE, DECREASED BP,DECREASED CENTRAL VENOUS PRESSURE, EDEMA, INCREASED BODY WEIGHT, IMBALANCE I & O
- PATIENTS W/HYPOCALCEMIA, DECREASED IRON INTAKE, SEVERE LIVER DISEASE, ALCOHOLISM, HYPOTHYROIDISM, MALABSORPTION, IMMOBILITY, BURNS AND CANCER
12
Q
ELECTROLYTES AND THERE EFFECTS ON BODY SYSTEM
A
Ka- for cardiac- Calcium and Potassium effect the heart
Na- for Neuro- Sodium effects are neurological
Ma- for Muscle although Mag also effects the nerves and heart
